-x-2x=7+5x

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Solution for -x-2x=7+5x equation: 


Simplifying
-1x + -2x = 7 + 5x

Combine like terms: -1x + -2x = -3x
-3x = 7 + 5x

Solving
-3x = 7 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-3x + -5x = 7 + 5x + -5x

Combine like terms: -3x + -5x = -8x
-8x = 7 + 5x + -5x

Combine like terms: 5x + -5x = 0
-8x = 7 + 0
-8x = 7

Divide each side by '-8'.
x = -0.875

Simplifying
x = -0.875

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