-20=7(x-8)-3x

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Solution for -20=7(x-8)-3x equation:


Simplifying
-20 = 7(x + -8) + -3x

Reorder the terms:
-20 = 7(-8 + x) + -3x
-20 = (-8 * 7 + x * 7) + -3x
-20 = (-56 + 7x) + -3x

Combine like terms: 7x + -3x = 4x
-20 = -56 + 4x

Solving
-20 = -56 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-20 + -4x = -56 + 4x + -4x

Combine like terms: 4x + -4x = 0
-20 + -4x = -56 + 0
-20 + -4x = -56

Add '20' to each side of the equation.
-20 + 20 + -4x = -56 + 20

Combine like terms: -20 + 20 = 0
0 + -4x = -56 + 20
-4x = -56 + 20

Combine like terms: -56 + 20 = -36
-4x = -36

Divide each side by '-4'.
x = 9

Simplifying
x = 9

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