99=6x+3(-6x-3)

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Solution for 99=6x+3(-6x-3) equation:


Simplifying
99 = 6x + 3(-6x + -3)

Reorder the terms:
99 = 6x + 3(-3 + -6x)
99 = 6x + (-3 * 3 + -6x * 3)
99 = 6x + (-9 + -18x)

Reorder the terms:
99 = -9 + 6x + -18x

Combine like terms: 6x + -18x = -12x
99 = -9 + -12x

Solving
99 = -9 + -12x

Solving for variable 'x'.

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

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

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

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

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

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

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

Simplifying
x = -9

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