40=4(2x-4)

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Solution for 40=4(2x-4) equation:


Simplifying
40 = 4(2x + -4)

Reorder the terms:
40 = 4(-4 + 2x)
40 = (-4 * 4 + 2x * 4)
40 = (-16 + 8x)

Solving
40 = -16 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
40 + -8x = -16 + 8x + -8x

Combine like terms: 8x + -8x = 0
40 + -8x = -16 + 0
40 + -8x = -16

Add '-40' to each side of the equation.
40 + -40 + -8x = -16 + -40

Combine like terms: 40 + -40 = 0
0 + -8x = -16 + -40
-8x = -16 + -40

Combine like terms: -16 + -40 = -56
-8x = -56

Divide each side by '-8'.
x = 7

Simplifying
x = 7

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