7x-12-4x=5x-9

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


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

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

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

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

Solving
-12 + 3x = -9 + 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.
-12 + 3x + -5x = -9 + 5x + -5x

Combine like terms: 3x + -5x = -2x
-12 + -2x = -9 + 5x + -5x

Combine like terms: 5x + -5x = 0
-12 + -2x = -9 + 0
-12 + -2x = -9

Add '12' to each side of the equation.
-12 + 12 + -2x = -9 + 12

Combine like terms: -12 + 12 = 0
0 + -2x = -9 + 12
-2x = -9 + 12

Combine like terms: -9 + 12 = 3
-2x = 3

Divide each side by '-2'.
x = -1.5

Simplifying
x = -1.5

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