8x+8+4x-8+12=8x+42-5x-12

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Solution for 8x+8+4x-8+12=8x+42-5x-12 equation: 


Simplifying
8x + 8 + 4x + -8 + 12 = 8x + 42 + -5x + -12

Reorder the terms:
8 + -8 + 12 + 8x + 4x = 8x + 42 + -5x + -12

Combine like terms: 8 + -8 = 0
0 + 12 + 8x + 4x = 8x + 42 + -5x + -12
12 + 8x + 4x = 8x + 42 + -5x + -12

Combine like terms: 8x + 4x = 12x
12 + 12x = 8x + 42 + -5x + -12

Reorder the terms:
12 + 12x = 42 + -12 + 8x + -5x

Combine like terms: 42 + -12 = 30
12 + 12x = 30 + 8x + -5x

Combine like terms: 8x + -5x = 3x
12 + 12x = 30 + 3x

Solving
12 + 12x = 30 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
12 + 12x + -3x = 30 + 3x + -3x

Combine like terms: 12x + -3x = 9x
12 + 9x = 30 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 + 9x = 30 + 0
12 + 9x = 30

Add '-12' to each side of the equation.
12 + -12 + 9x = 30 + -12

Combine like terms: 12 + -12 = 0
0 + 9x = 30 + -12
9x = 30 + -12

Combine like terms: 30 + -12 = 18
9x = 18

Divide each side by '9'.
x = 2

Simplifying
x = 2

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