20=4(x-4)

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


Simplifying
20 = 4(x + -4)

Reorder the terms:
20 = 4(-4 + x)
20 = (-4 * 4 + x * 4)
20 = (-16 + 4x)

Solving
20 = -16 + 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 = -16 + 4x + -4x

Combine like terms: 4x + -4x = 0
20 + -4x = -16 + 0
20 + -4x = -16

Add '-20' to each side of the equation.
20 + -20 + -4x = -16 + -20

Combine like terms: 20 + -20 = 0
0 + -4x = -16 + -20
-4x = -16 + -20

Combine like terms: -16 + -20 = -36
-4x = -36

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

Simplifying
x = 9

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