-2x+7(1-x)=3x+31

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Solution for -2x+7(1-x)=3x+31 equation:


Simplifying
-2x + 7(1 + -1x) = 3x + 31
-2x + (1 * 7 + -1x * 7) = 3x + 31
-2x + (7 + -7x) = 3x + 31

Reorder the terms:
7 + -2x + -7x = 3x + 31

Combine like terms: -2x + -7x = -9x
7 + -9x = 3x + 31

Reorder the terms:
7 + -9x = 31 + 3x

Solving
7 + -9x = 31 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
7 + -9x + -3x = 31 + 3x + -3x

Combine like terms: -9x + -3x = -12x
7 + -12x = 31 + 3x + -3x

Combine like terms: 3x + -3x = 0
7 + -12x = 31 + 0
7 + -12x = 31

Add '-7' to each side of the equation.
7 + -7 + -12x = 31 + -7

Combine like terms: 7 + -7 = 0
0 + -12x = 31 + -7
-12x = 31 + -7

Combine like terms: 31 + -7 = 24
-12x = 24

Divide each side by '-12'.
x = -2

Simplifying
x = -2

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