-3(x-4)-x=20

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Solution for -3(x-4)-x=20 equation:


Simplifying
-3(x + -4) + -1x = 20

Reorder the terms:
-3(-4 + x) + -1x = 20
(-4 * -3 + x * -3) + -1x = 20
(12 + -3x) + -1x = 20

Combine like terms: -3x + -1x = -4x
12 + -4x = 20

Solving
12 + -4x = 20

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -4x = 20 + -12

Combine like terms: 12 + -12 = 0
0 + -4x = 20 + -12
-4x = 20 + -12

Combine like terms: 20 + -12 = 8
-4x = 8

Divide each side by '-4'.
x = -2

Simplifying
x = -2

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