87-5x=7x-15

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Solution for 87-5x=7x-15 equation:


Simplifying
87 + -5x = 7x + -15

Reorder the terms:
87 + -5x = -15 + 7x

Solving
87 + -5x = -15 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
87 + -5x + -7x = -15 + 7x + -7x

Combine like terms: -5x + -7x = -12x
87 + -12x = -15 + 7x + -7x

Combine like terms: 7x + -7x = 0
87 + -12x = -15 + 0
87 + -12x = -15

Add '-87' to each side of the equation.
87 + -87 + -12x = -15 + -87

Combine like terms: 87 + -87 = 0
0 + -12x = -15 + -87
-12x = -15 + -87

Combine like terms: -15 + -87 = -102
-12x = -102

Divide each side by '-12'.
x = 8.5

Simplifying
x = 8.5

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