12x-(3x-7)=31+5x

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Solution for 12x-(3x-7)=31+5x equation:


Simplifying
12x + -1(3x + -7) = 31 + 5x

Reorder the terms:
12x + -1(-7 + 3x) = 31 + 5x
12x + (-7 * -1 + 3x * -1) = 31 + 5x
12x + (7 + -3x) = 31 + 5x

Reorder the terms:
7 + 12x + -3x = 31 + 5x

Combine like terms: 12x + -3x = 9x
7 + 9x = 31 + 5x

Solving
7 + 9x = 31 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
7 + 9x + -5x = 31 + 5x + -5x

Combine like terms: 9x + -5x = 4x
7 + 4x = 31 + 5x + -5x

Combine like terms: 5x + -5x = 0
7 + 4x = 31 + 0
7 + 4x = 31

Add '-7' to each side of the equation.
7 + -7 + 4x = 31 + -7

Combine like terms: 7 + -7 = 0
0 + 4x = 31 + -7
4x = 31 + -7

Combine like terms: 31 + -7 = 24
4x = 24

Divide each side by '4'.
x = 6

Simplifying
x = 6

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