87-3x=2x+12

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Solution for 87-3x=2x+12 equation:


Simplifying
87 + -3x = 2x + 12

Reorder the terms:
87 + -3x = 12 + 2x

Solving
87 + -3x = 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.
87 + -3x + -2x = 12 + 2x + -2x

Combine like terms: -3x + -2x = -5x
87 + -5x = 12 + 2x + -2x

Combine like terms: 2x + -2x = 0
87 + -5x = 12 + 0
87 + -5x = 12

Add '-87' to each side of the equation.
87 + -87 + -5x = 12 + -87

Combine like terms: 87 + -87 = 0
0 + -5x = 12 + -87
-5x = 12 + -87

Combine like terms: 12 + -87 = -75
-5x = -75

Divide each side by '-5'.
x = 15

Simplifying
x = 15

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