31=7x+2(-6x-2)

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Solution for 31=7x+2(-6x-2) equation:


Simplifying
31 = 7x + 2(-6x + -2)

Reorder the terms:
31 = 7x + 2(-2 + -6x)
31 = 7x + (-2 * 2 + -6x * 2)
31 = 7x + (-4 + -12x)

Reorder the terms:
31 = -4 + 7x + -12x

Combine like terms: 7x + -12x = -5x
31 = -4 + -5x

Solving
31 = -4 + -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.
31 + 5x = -4 + -5x + 5x

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

Add '-31' to each side of the equation.
31 + -31 + 5x = -4 + -31

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

Combine like terms: -4 + -31 = -35
5x = -35

Divide each side by '5'.
x = -7

Simplifying
x = -7

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