-99=2x+7x+9

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Solution for -99=2x+7x+9 equation:


Simplifying
-99 = 2x + 7x + 9

Reorder the terms:
-99 = 9 + 2x + 7x

Combine like terms: 2x + 7x = 9x
-99 = 9 + 9x

Solving
-99 = 9 + 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.
-99 + -9x = 9 + 9x + -9x

Combine like terms: 9x + -9x = 0
-99 + -9x = 9 + 0
-99 + -9x = 9

Add '99' to each side of the equation.
-99 + 99 + -9x = 9 + 99

Combine like terms: -99 + 99 = 0
0 + -9x = 9 + 99
-9x = 9 + 99

Combine like terms: 9 + 99 = 108
-9x = 108

Divide each side by '-9'.
x = -12

Simplifying
x = -12

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