9-12=12x+5-8x

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


Simplifying
9 + -12 = 12x + 5 + -8x

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

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

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

Solving
-3 = 5 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-3 + -4x = 5 + 4x + -4x

Combine like terms: 4x + -4x = 0
-3 + -4x = 5 + 0
-3 + -4x = 5

Add '3' to each side of the equation.
-3 + 3 + -4x = 5 + 3

Combine like terms: -3 + 3 = 0
0 + -4x = 5 + 3
-4x = 5 + 3

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

Divide each side by '-4'.
x = -2

Simplifying
x = -2

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