8x+12=7x-9

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


Simplifying
8x + 12 = 7x + -9

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

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

Solving
12 + 8x = -9 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
12 + 8x + -7x = -9 + 7x + -7x

Combine like terms: 8x + -7x = 1x
12 + 1x = -9 + 7x + -7x

Combine like terms: 7x + -7x = 0
12 + 1x = -9 + 0
12 + 1x = -9

Add '-12' to each side of the equation.
12 + -12 + 1x = -9 + -12

Combine like terms: 12 + -12 = 0
0 + 1x = -9 + -12
1x = -9 + -12

Combine like terms: -9 + -12 = -21
1x = -21

Divide each side by '1'.
x = -21

Simplifying
x = -21

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