9x-4+21=8-12x+7x

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Solution for 9x-4+21=8-12x+7x equation:


Simplifying
9x + -4 + 21 = 8 + -12x + 7x

Reorder the terms:
-4 + 21 + 9x = 8 + -12x + 7x

Combine like terms: -4 + 21 = 17
17 + 9x = 8 + -12x + 7x

Combine like terms: -12x + 7x = -5x
17 + 9x = 8 + -5x

Solving
17 + 9x = 8 + -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.
17 + 9x + 5x = 8 + -5x + 5x

Combine like terms: 9x + 5x = 14x
17 + 14x = 8 + -5x + 5x

Combine like terms: -5x + 5x = 0
17 + 14x = 8 + 0
17 + 14x = 8

Add '-17' to each side of the equation.
17 + -17 + 14x = 8 + -17

Combine like terms: 17 + -17 = 0
0 + 14x = 8 + -17
14x = 8 + -17

Combine like terms: 8 + -17 = -9
14x = -9

Divide each side by '14'.
x = -0.6428571429

Simplifying
x = -0.6428571429

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