-5x+9-7x=-99

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Solution for -5x+9-7x=-99 equation:


Simplifying
-5x + 9 + -7x = -99

Reorder the terms:
9 + -5x + -7x = -99

Combine like terms: -5x + -7x = -12x
9 + -12x = -99

Solving
9 + -12x = -99

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -12x = -99 + -9

Combine like terms: 9 + -9 = 0
0 + -12x = -99 + -9
-12x = -99 + -9

Combine like terms: -99 + -9 = -108
-12x = -108

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

Simplifying
x = 9

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