2(9-3(-2x-4))=12x+42

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Solution for 2(9-3(-2x-4))=12x+42 equation: 


Simplifying
2(9 + -3(-2x + -4)) = 12x + 42

Reorder the terms:
2(9 + -3(-4 + -2x)) = 12x + 42
2(9 + (-4 * -3 + -2x * -3)) = 12x + 42
2(9 + (12 + 6x)) = 12x + 42

Combine like terms: 9 + 12 = 21
2(21 + 6x) = 12x + 42
(21 * 2 + 6x * 2) = 12x + 42
(42 + 12x) = 12x + 42

Reorder the terms:
42 + 12x = 42 + 12x

Add '-42' to each side of the equation.
42 + -42 + 12x = 42 + -42 + 12x

Combine like terms: 42 + -42 = 0
0 + 12x = 42 + -42 + 12x
12x = 42 + -42 + 12x

Combine like terms: 42 + -42 = 0
12x = 0 + 12x
12x = 12x

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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