12=4x+4(2x-18)

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Solution for 12=4x+4(2x-18) equation:


Simplifying
12 = 4x + 4(2x + -18)

Reorder the terms:
12 = 4x + 4(-18 + 2x)
12 = 4x + (-18 * 4 + 2x * 4)
12 = 4x + (-72 + 8x)

Reorder the terms:
12 = -72 + 4x + 8x

Combine like terms: 4x + 8x = 12x
12 = -72 + 12x

Solving
12 = -72 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
12 + -12x = -72 + 12x + -12x

Combine like terms: 12x + -12x = 0
12 + -12x = -72 + 0
12 + -12x = -72

Add '-12' to each side of the equation.
12 + -12 + -12x = -72 + -12

Combine like terms: 12 + -12 = 0
0 + -12x = -72 + -12
-12x = -72 + -12

Combine like terms: -72 + -12 = -84
-12x = -84

Divide each side by '-12'.
x = 7

Simplifying
x = 7

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