How do you solve 9+3x+1-2x?
回答 (18)
2010-04-04 12:54 pm
✔ 最佳答案
combine like terms9+3x+1-2x
=x+10 answer//
2010-04-05 2:40 pm
Use the linear equation to determine the value of x.
This is step-by-step method:
separate the numbers with variables from the others which doesn't have x's
3x-2x+9+1
transpose the numbers without x's(well, of course it will be from positive(+) to negative(-))
3x-2x=-9-1
Do the operations
1x=-10
simplify
x=-10 (since -10/1 is -10)
check your answer
x=-10
9+3x+1-2x=0
9+3(-10)+1-2(-10)=0
9-30+1+20=0
-21+21=0
0=0 true!
This is step-by-step method:
separate the numbers with variables from the others which doesn't have x's
3x-2x+9+1
transpose the numbers without x's(well, of course it will be from positive(+) to negative(-))
3x-2x=-9-1
Do the operations
1x=-10
simplify
x=-10 (since -10/1 is -10)
check your answer
x=-10
9+3x+1-2x=0
9+3(-10)+1-2(-10)=0
9-30+1+20=0
-21+21=0
0=0 true!
參考: my Philippine Science High School learning experience! Yay!
2010-04-04 1:07 pm
combine like terms.
9 + 3x + 1 - 2x =
x + 10 =
x = - 10.
9 + 3x + 1 - 2x =
x + 10 =
x = - 10.
2010-04-04 1:06 pm
9 + 3x + 1 - 2x
= 3x - 2x + 9 + 1
= x + 10
= 3x - 2x + 9 + 1
= x + 10
2010-04-04 12:56 pm
First, re-arrange the terms in the proper order:
3x-2x+9+1 = x + 10. Ans.(note that the x term is mentioned first)
Here's another example to make things clearer:
7 - 4y + 2 + 3x +2y + 5x = 3x + 5x -4y +2y +7+2
= 8x - 2y + 9. Ans.(note that x term comes first, followed by
the y term and lastly the numeral)
3x-2x+9+1 = x + 10. Ans.(note that the x term is mentioned first)
Here's another example to make things clearer:
7 - 4y + 2 + 3x +2y + 5x = 3x + 5x -4y +2y +7+2
= 8x - 2y + 9. Ans.(note that x term comes first, followed by
the y term and lastly the numeral)
2010-04-04 12:54 pm
9+3x+1-2x
=9+1+3x-2x
=10+x
This is a simplification of the given expretion, and it has no solution as it is not an equation.
=9+1+3x-2x
=10+x
This is a simplification of the given expretion, and it has no solution as it is not an equation.
參考: math teacher
2010-04-04 12:52 pm
You collect like terms-so the normal numbers and the x's, and you use the number and the sign before it, so 9 +1 =10 and +3x-2x= +1x so put them together and voila, 10+1x
2010-04-04 12:43 pm
set it equal to zero..
9+3x+1-2x=0
then solve it
9+3x+1-2x=0
then solve it
2010-04-04 12:42 pm
10+x
You add together all of the numbers and all of the x's so
9 + 1 = 10 and 3x + -2x = x or 1x
That is collecting like terms, to solve it:
10 + x = 0
x - 10 = 0-10
x = -10
You add together all of the numbers and all of the x's so
9 + 1 = 10 and 3x + -2x = x or 1x
That is collecting like terms, to solve it:
10 + x = 0
x - 10 = 0-10
x = -10
2010-04-04 12:42 pm
10+x
收錄日期: 2021-05-01 13:09:27
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