12+7x-9=3x+5-8-4x

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Solution for 12+7x-9=3x+5-8-4x equation:


Simplifying
12 + 7x + -9 = 3x + 5 + -8 + -4x

Reorder the terms:
12 + -9 + 7x = 3x + 5 + -8 + -4x

Combine like terms: 12 + -9 = 3
3 + 7x = 3x + 5 + -8 + -4x

Reorder the terms:
3 + 7x = 5 + -8 + 3x + -4x

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

Combine like terms: 3x + -4x = -1x
3 + 7x = -3 + -1x

Solving
3 + 7x = -3 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3 + 7x + x = -3 + -1x + x

Combine like terms: 7x + x = 8x
3 + 8x = -3 + -1x + x

Combine like terms: -1x + x = 0
3 + 8x = -3 + 0
3 + 8x = -3

Add '-3' to each side of the equation.
3 + -3 + 8x = -3 + -3

Combine like terms: 3 + -3 = 0
0 + 8x = -3 + -3
8x = -3 + -3

Combine like terms: -3 + -3 = -6
8x = -6

Divide each side by '8'.
x = -0.75

Simplifying
x = -0.75

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