-(x-7)=31-9x

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Solution for -(x-7)=31-9x equation:


Simplifying
-1(x + -7) = 31 + -9x

Reorder the terms:
-1(-7 + x) = 31 + -9x
(-7 * -1 + x * -1) = 31 + -9x
(7 + -1x) = 31 + -9x

Solving
7 + -1x = 31 + -9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '9x' to each side of the equation.
7 + -1x + 9x = 31 + -9x + 9x

Combine like terms: -1x + 9x = 8x
7 + 8x = 31 + -9x + 9x

Combine like terms: -9x + 9x = 0
7 + 8x = 31 + 0
7 + 8x = 31

Add '-7' to each side of the equation.
7 + -7 + 8x = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 8x = 31 + -7
8x = 31 + -7

Combine like terms: 31 + -7 = 24
8x = 24

Divide each side by '8'.
x = 3

Simplifying
x = 3

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