-x-15=3x+13

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Solution for -x-15=3x+13 equation:


Simplifying
-1x + -15 = 3x + 13

Reorder the terms:
-15 + -1x = 3x + 13

Reorder the terms:
-15 + -1x = 13 + 3x

Solving
-15 + -1x = 13 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-15 + -1x + -3x = 13 + 3x + -3x

Combine like terms: -1x + -3x = -4x
-15 + -4x = 13 + 3x + -3x

Combine like terms: 3x + -3x = 0
-15 + -4x = 13 + 0
-15 + -4x = 13

Add '15' to each side of the equation.
-15 + 15 + -4x = 13 + 15

Combine like terms: -15 + 15 = 0
0 + -4x = 13 + 15
-4x = 13 + 15

Combine like terms: 13 + 15 = 28
-4x = 28

Divide each side by '-4'.
x = -7

Simplifying
x = -7

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