3x-(-8x)=-99

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Solution for 3x-(-8x)=-99 equation: 


Simplifying
3x + -1(-8x) = -99

Remove parenthesis around (-8x)
3x + -1 * -8x = -99

Multiply -1 * -8
3x + 8x = -99

Combine like terms: 3x + 8x = 11x
11x = -99

Solving
11x = -99

Solving for variable 'x'.

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

Divide each side by '11'.
x = -9

Simplifying
x = -9

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