-2x+2(-3x-9)=78

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Solution for -2x+2(-3x-9)=78 equation:


Simplifying
-2x + 2(-3x + -9) = 78

Reorder the terms:
-2x + 2(-9 + -3x) = 78
-2x + (-9 * 2 + -3x * 2) = 78
-2x + (-18 + -6x) = 78

Reorder the terms:
-18 + -2x + -6x = 78

Combine like terms: -2x + -6x = -8x
-18 + -8x = 78

Solving
-18 + -8x = 78

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + -8x = 78 + 18

Combine like terms: -18 + 18 = 0
0 + -8x = 78 + 18
-8x = 78 + 18

Combine like terms: 78 + 18 = 96
-8x = 96

Divide each side by '-8'.
x = -12

Simplifying
x = -12

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