10x+7=12x-9

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Solution for 10x+7=12x-9 equation:


Simplifying
10x + 7 = 12x + -9

Reorder the terms:
7 + 10x = 12x + -9

Reorder the terms:
7 + 10x = -9 + 12x

Solving
7 + 10x = -9 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
7 + 10x + -12x = -9 + 12x + -12x

Combine like terms: 10x + -12x = -2x
7 + -2x = -9 + 12x + -12x

Combine like terms: 12x + -12x = 0
7 + -2x = -9 + 0
7 + -2x = -9

Add '-7' to each side of the equation.
7 + -7 + -2x = -9 + -7

Combine like terms: 7 + -7 = 0
0 + -2x = -9 + -7
-2x = -9 + -7

Combine like terms: -9 + -7 = -16
-2x = -16

Divide each side by '-2'.
x = 8

Simplifying
x = 8

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