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 = 75x
-144 + 75x = -9 + -63x + 63x

Combine like terms: -63x + 63x = 0
-144 + 75x = -9 + 0
-144 + 75x = -9

Add '144' to each side of the equation.
-144 + 144 + 75x = -9 + 144

Combine like terms: -144 + 144 = 0
0 + 75x = -9 + 144
75x = -9 + 144

Combine like terms: -9 + 144 = 135
75x = 135

Divide each side by '75'.
x = 1.8

Simplifying
x = 1.8

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