x-3x+8=40

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Solution for x-3x+8=40 equation: 


Simplifying
x + -3x + 8 = 40

Reorder the terms:
8 + x + -3x = 40

Combine like terms: x + -3x = -2x
8 + -2x = 40

Solving
8 + -2x = 40

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + -2x = 40 + -8

Combine like terms: 8 + -8 = 0
0 + -2x = 40 + -8
-2x = 40 + -8

Combine like terms: 40 + -8 = 32
-2x = 32

Divide each side by '-2'.
x = -16

Simplifying
x = -16

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