6x+7-2x-12=9x+15

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Solution for 6x+7-2x-12=9x+15 equation:


Simplifying
6x + 7 + -2x + -12 = 9x + 15

Reorder the terms:
7 + -12 + 6x + -2x = 9x + 15

Combine like terms: 7 + -12 = -5
-5 + 6x + -2x = 9x + 15

Combine like terms: 6x + -2x = 4x
-5 + 4x = 9x + 15

Reorder the terms:
-5 + 4x = 15 + 9x

Solving
-5 + 4x = 15 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-5 + 4x + -9x = 15 + 9x + -9x

Combine like terms: 4x + -9x = -5x
-5 + -5x = 15 + 9x + -9x

Combine like terms: 9x + -9x = 0
-5 + -5x = 15 + 0
-5 + -5x = 15

Add '5' to each side of the equation.
-5 + 5 + -5x = 15 + 5

Combine like terms: -5 + 5 = 0
0 + -5x = 15 + 5
-5x = 15 + 5

Combine like terms: 15 + 5 = 20
-5x = 20

Divide each side by '-5'.
x = -4

Simplifying
x = -4

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