-8x-9=-9x+12

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


Simplifying
-8x + -9 = -9x + 12

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

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

Solving
-9 + -8x = 12 + -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.
-9 + -8x + 9x = 12 + -9x + 9x

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

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

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

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

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

Divide each side by '1'.
x = 21

Simplifying
x = 21

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