78=-9x+-3(-56+12x)

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Solution for 78=-9x+-3(-56+12x) equation: 


Simplifying
78 = -9x + -3(-56 + 12x)
78 = -9x + (-56 * -3 + 12x * -3)
78 = -9x + (168 + -36x)

Reorder the terms:
78 = 168 + -9x + -36x

Combine like terms: -9x + -36x = -45x
78 = 168 + -45x

Solving
78 = 168 + -45x

Solving for variable 'x'.

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

Add '45x' to each side of the equation.
78 + 45x = 168 + -45x + 45x

Combine like terms: -45x + 45x = 0
78 + 45x = 168 + 0
78 + 45x = 168

Add '-78' to each side of the equation.
78 + -78 + 45x = 168 + -78

Combine like terms: 78 + -78 = 0
0 + 45x = 168 + -78
45x = 168 + -78

Combine like terms: 168 + -78 = 90
45x = 90

Divide each side by '45'.
x = 2

Simplifying
x = 2

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