-2x-x+12=78

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Solution for -2x-x+12=78 equation:


Simplifying
-2x + -1x + 12 = 78

Reorder the terms:
12 + -2x + -1x = 78

Combine like terms: -2x + -1x = -3x
12 + -3x = 78

Solving
12 + -3x = 78

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -3x = 78 + -12

Combine like terms: 12 + -12 = 0
0 + -3x = 78 + -12
-3x = 78 + -12

Combine like terms: 78 + -12 = 66
-3x = 66

Divide each side by '-3'.
x = -22

Simplifying
x = -22

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