-15-x+4x=x+87

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Solution for -15-x+4x=x+87 equation:


Simplifying
-15 + -1x + 4x = x + 87

Combine like terms: -1x + 4x = 3x
-15 + 3x = x + 87

Reorder the terms:
-15 + 3x = 87 + x

Solving
-15 + 3x = 87 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-15 + 3x + -1x = 87 + x + -1x

Combine like terms: 3x + -1x = 2x
-15 + 2x = 87 + x + -1x

Combine like terms: x + -1x = 0
-15 + 2x = 87 + 0
-15 + 2x = 87

Add '15' to each side of the equation.
-15 + 15 + 2x = 87 + 15

Combine like terms: -15 + 15 = 0
0 + 2x = 87 + 15
2x = 87 + 15

Combine like terms: 87 + 15 = 102
2x = 102

Divide each side by '2'.
x = 51

Simplifying
x = 51

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