18=-4x+7(-x+12)

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Solution for 18=-4x+7(-x+12) equation:


Simplifying
18 = -4x + 7(-1x + 12)

Reorder the terms:
18 = -4x + 7(12 + -1x)
18 = -4x + (12 * 7 + -1x * 7)
18 = -4x + (84 + -7x)

Reorder the terms:
18 = 84 + -4x + -7x

Combine like terms: -4x + -7x = -11x
18 = 84 + -11x

Solving
18 = 84 + -11x

Solving for variable 'x'.

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

Add '11x' to each side of the equation.
18 + 11x = 84 + -11x + 11x

Combine like terms: -11x + 11x = 0
18 + 11x = 84 + 0
18 + 11x = 84

Add '-18' to each side of the equation.
18 + -18 + 11x = 84 + -18

Combine like terms: 18 + -18 = 0
0 + 11x = 84 + -18
11x = 84 + -18

Combine like terms: 84 + -18 = 66
11x = 66

Divide each side by '11'.
x = 6

Simplifying
x = 6

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