-x-15-3x=x

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Solution for -x-15-3x=x equation:


Simplifying
-1x + -15 + -3x = x

Reorder the terms:
-15 + -1x + -3x = x

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

Solving
-15 + -4x = 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 + -4x + -1x = x + -1x

Combine like terms: -4x + -1x = -5x
-15 + -5x = x + -1x

Combine like terms: x + -1x = 0
-15 + -5x = 0

Add '15' to each side of the equation.
-15 + 15 + -5x = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -5x = 0 + 15
-5x = 0 + 15

Combine like terms: 0 + 15 = 15
-5x = 15

Divide each side by '-5'.
x = -3

Simplifying
x = -3

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