4x - 6/7 = 2 value of X?

2009-02-17 1:02 pm
What is the value of the X?
Please can you show working too?

回答 (11)

2009-02-17 1:15 pm
✔ 最佳答案
Have you not been taught to isolate x?

Transpose -6/7 to the right side to give 2 + 6/7. Convert that number to a fraction

2= 14/7 and added to 6/7 gives 20/7

Thus 4x=20/7

Now divide each side by 4 to give x

Thus x= 20/7 times 1/4

4 goes into 20 , 5 times

so x=5/7
2016-10-18 6:04 pm
three times 4x is 12x; three times 2 is 6... 12x+6=7; subtract 6 from 7 to get 12x=a million; divide with the aid of 12 which might equivalent x=a million/12 plug it in...4 cases a million/12 equals .3333333333333... plus 2 equals 2.3333333333 cases 3 equals 6.9999999 rounded equals 7!!!!!! performed with artwork... x=a million/12
2009-02-21 11:47 am
As given question MUST be read as :-
4x - (6/7) = 2
4x = 14/7 + 6/7
4x = 20/7
x = 5/7

However it may be that you mean :-
(4x - 6) / 7 = 2
4x - 6 = 14
4x = 20
x = 5
2009-02-17 3:30 pm
4x - 6/7 = 2
4x = 2 + 6/7
4x = 14/7 + 6/7
x = (20/7)/4
x = (20/7)(1/4)
x = 5/7
2009-02-17 1:44 pm
I would start with removing fractions first: multiply both sides by 7
28x - 6 = 14
28x = 20
x = 20/28
x = 5/7

you did not have to remove the fractions, it however made out calculations a bit easier.
2009-02-17 1:28 pm
4x - 6/7 = 2

4x = 2 + 6/7 (collect like terms- by transfer -6/7, then - sign change to + sign

4x = 20/7 (L.C.M)

28x = 20 (Cross Multiply)

Divide both side by coefficient of x which 28

28x/28 = 20/28

x = 5/7 or 0.714
2009-02-17 1:11 pm
add 6/7 to both sides so 4x=20/7, then divided by 4
so x equals 5/7
2009-02-17 1:10 pm
4x= 2+6/7
4x=14/7+6/7
4x=20/7
x=20/28
=5/7
2009-02-17 1:09 pm
4x-6/7=2

=> 4x=2+6/7

=>4x= 20/7

=>x= 20/7 x 1/4

=> x= 5/7
2009-02-17 1:24 pm
4x - 6/7 =2
add 6/7 to the both side of equal sign

4x - 6/7 +6/7 = 2+6/7

right side will remain 4x since -6/7 and +6/7 council

4x =2 + 6/7
add 2 to 6/7

4x = 20/7

multiply both side of equal sign by 7
(4x)x7 = 20/7x7

28x = 20

divide both side by 28

28x/28 = 20/28


x = 20/28


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