20-12=4(x-8)

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Solution for 20-12=4(x-8) equation:


Simplifying
20 + -12 = 4(x + -8)

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

Reorder the terms:
8 = 4(-8 + x)
8 = (-8 * 4 + x * 4)
8 = (-32 + 4x)

Solving
8 = -32 + 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.
8 + -4x = -32 + 4x + -4x

Combine like terms: 4x + -4x = 0
8 + -4x = -32 + 0
8 + -4x = -32

Add '-8' to each side of the equation.
8 + -8 + -4x = -32 + -8

Combine like terms: 8 + -8 = 0
0 + -4x = -32 + -8
-4x = -32 + -8

Combine like terms: -32 + -8 = -40
-4x = -40

Divide each side by '-4'.
x = 10

Simplifying
x = 10

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