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

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


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

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

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

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

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

Solving
-5 + -9x = 5 + -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.
-5 + -9x + 5x = 5 + -5x + 5x

Combine like terms: -9x + 5x = -4x
-5 + -4x = 5 + -5x + 5x

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

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

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

Combine like terms: 5 + 5 = 10
-4x = 10

Divide each side by '-4'.
x = -2.5

Simplifying
x = -2.5

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