78=2x-12

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Solution for 78=2x-12 equation:


Simplifying
78 = 2x + -12

Reorder the terms:
78 = -12 + 2x

Solving
78 = -12 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
78 + -2x = -12 + 2x + -2x

Combine like terms: 2x + -2x = 0
78 + -2x = -12 + 0
78 + -2x = -12

Add '-78' to each side of the equation.
78 + -78 + -2x = -12 + -78

Combine like terms: 78 + -78 = 0
0 + -2x = -12 + -78
-2x = -12 + -78

Combine like terms: -12 + -78 = -90
-2x = -90

Divide each side by '-2'.
x = 45

Simplifying
x = 45

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