How do i solve these math problems??
2017-04-20 8:47 am
I was sick last week and now my hw sheet is due tomorrow. My parents dunno how to do it and my friends are not replying to my texts. Please help
回答 (15)
2017-04-20 11:40 am
Step 1: Get the fractions together on one side. When a fraction changes sides, change the sign to the opposite sign.
n/2 + 1 2/3 = 1/6
n/2 = -1 2/3 +1/6
step 2: Get the fractions into a common denominator, and get an answer.
n/2 = -1 4/6 + 1/6
n/2 = - 1 3/6
Step 3: crossmultiply sometimes or divide.
n= 2( -1 3/6) .............2/1 (-9/6 ) = -18/6 = -3
n= -3
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
4/5 - 2 1/2x = 3/10
4/5 -3/10 = +2 12x
8/10 -3/10 = 2 12/x
5/10 = 2 1/2x
5/10 divided by 2 1/2 = x
5/10 divided by 5/2=x
5/10 * 2/5=x
10/50=x
1/5=x
,,,,,,,,,,,,,,,,,,,,,,,,,,,,
2d+1/2 = 5/4
2d = 5/4 -1/2
2d= 5/4 -2/4
2d= 3/4
d= 3/4 divided by 2/1
d= 3/4 *1/2
d= 3/8
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
1/2x+9 = 2x-6
1/2x -2x = -9-6
1/2x - 4/2x = -15
-3/2x = -15/1
crossmultiply
-3 = -30x
-3/30 = x
-1/10 =x
n/2 + 1 2/3 = 1/6
n/2 = -1 2/3 +1/6
step 2: Get the fractions into a common denominator, and get an answer.
n/2 = -1 4/6 + 1/6
n/2 = - 1 3/6
Step 3: crossmultiply sometimes or divide.
n= 2( -1 3/6) .............2/1 (-9/6 ) = -18/6 = -3
n= -3
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
4/5 - 2 1/2x = 3/10
4/5 -3/10 = +2 12x
8/10 -3/10 = 2 12/x
5/10 = 2 1/2x
5/10 divided by 2 1/2 = x
5/10 divided by 5/2=x
5/10 * 2/5=x
10/50=x
1/5=x
,,,,,,,,,,,,,,,,,,,,,,,,,,,,
2d+1/2 = 5/4
2d = 5/4 -1/2
2d= 5/4 -2/4
2d= 3/4
d= 3/4 divided by 2/1
d= 3/4 *1/2
d= 3/8
,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
1/2x+9 = 2x-6
1/2x -2x = -9-6
1/2x - 4/2x = -15
-3/2x = -15/1
crossmultiply
-3 = -30x
-3/30 = x
-1/10 =x
2017-04-20 9:03 am
in all of these, you need to first reduce the number of terms to a minimum -- this likely means adding or subtracting a fixed quantity from both sides of the equation in such a way that the fixed quantity on the side with the variable ["x" for example} becomes zero.
you then need to multiply or divide by the term multiplying or dividing the variable ["x"] in such a way as to render the value equal to one on the side with the variable. do the exact same operation on the other side and you'll have the answer. [example: number eight -- divide the left hand side by -2/3 and the right hand side by -2/3 in this step]
the answer to number eight is minus three ... you do the rest
you then need to multiply or divide by the term multiplying or dividing the variable ["x"] in such a way as to render the value equal to one on the side with the variable. do the exact same operation on the other side and you'll have the answer. [example: number eight -- divide the left hand side by -2/3 and the right hand side by -2/3 in this step]
the answer to number eight is minus three ... you do the rest
參考: grampa
2017-04-20 12:49 pm
Step 1: isolate x by combining like variables and coefficients (so if it is 4x + 2 = 4 then subtract 2 from both sides to make it 4x = 2)
Step 2: do the opposite of what is done to ex to the other side to solve for x (so if it is 4x = 2, then x = 2/4)
Step 3: simplify your answer
Step 2: do the opposite of what is done to ex to the other side to solve for x (so if it is 4x = 2, then x = 2/4)
Step 3: simplify your answer
2017-04-20 8:56 am
If you can, go into school early tomorrow morning and ask the teacher for help.
2017-05-03 10:54 pm
your handwriting is very messy... join my cult and we shall find time to fix your handwriting and maths problems
2017-04-28 2:15 am
dear,
1...thanks am also fine like you
2...for remind instead of asking to me & our other friends pleease ask openly to your corresponding master...
3...that is only direct solution to bright future
1...thanks am also fine like you
2...for remind instead of asking to me & our other friends pleease ask openly to your corresponding master...
3...that is only direct solution to bright future
2017-04-26 5:22 am
These are easy peasy lemon squeezy.All you have to know is that you should put the x variables on the left side and the other variables on the right side of the equal sign.
Then you would get an equation which i hope you know how to solve it.
Then you would get an equation which i hope you know how to solve it.
2017-04-23 3:46 am
Dear,
1.thanks am also fine like you
2.for remind instead of asking to me & our other friends please ask openly to your corresponding master.
3.That is only direct solution to bright future
1.thanks am also fine like you
2.for remind instead of asking to me & our other friends please ask openly to your corresponding master.
3.That is only direct solution to bright future
2017-04-22 6:13 pm
idk
2017-04-22 5:58 am
I would help you but...
2017-04-20 11:54 am
idk
2017-04-20 8:52 am
idk
2017-04-20 8:51 am
Your handwriting is very messy. Join my cult and we will find time to fix your handwriting and maths problems
2017-04-20 8:49 am
ask your teddy bear by your bedside
2017-04-20 10:02 am
Idk about shitty math kid
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