3x+8+4x=5x-12

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Solution for 3x+8+4x=5x-12 equation:


Simplifying
3x + 8 + 4x = 5x + -12

Reorder the terms:
8 + 3x + 4x = 5x + -12

Combine like terms: 3x + 4x = 7x
8 + 7x = 5x + -12

Reorder the terms:
8 + 7x = -12 + 5x

Solving
8 + 7x = -12 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
8 + 7x + -5x = -12 + 5x + -5x

Combine like terms: 7x + -5x = 2x
8 + 2x = -12 + 5x + -5x

Combine like terms: 5x + -5x = 0
8 + 2x = -12 + 0
8 + 2x = -12

Add '-8' to each side of the equation.
8 + -8 + 2x = -12 + -8

Combine like terms: 8 + -8 = 0
0 + 2x = -12 + -8
2x = -12 + -8

Combine like terms: -12 + -8 = -20
2x = -20

Divide each side by '2'.
x = -10

Simplifying
x = -10

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