-12[x-12]=-9[1+7x]

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Solution for -12[x-12]=-9[1+7x] equation:


Simplifying
-12[x + -12] = -9[1 + 7x]

Reorder the terms:
-12[-12 + x] = -9[1 + 7x]
[-12 * -12 + x * -12] = -9[1 + 7x]
[144 + -12x] = -9[1 + 7x]
144 + -12x = [1 * -9 + 7x * -9]
144 + -12x = [-9 + -63x]

Solving
144 + -12x = -9 + -63x

Solving for variable 'x'.

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

Add '63x' to each side of the equation.
144 + -12x + 63x = -9 + -63x + 63x

Combine like terms: -12x + 63x = 51x
144 + 51x = -9 + -63x + 63x

Combine like terms: -63x + 63x = 0
144 + 51x = -9 + 0
144 + 51x = -9

Add '-144' to each side of the equation.
144 + -144 + 51x = -9 + -144

Combine like terms: 144 + -144 = 0
0 + 51x = -9 + -144
51x = -9 + -144

Combine like terms: -9 + -144 = -153
51x = -153

Divide each side by '51'.
x = -3

Simplifying
x = -3

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