99=7x+3(2x-6)

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Solution for 99=7x+3(2x-6) equation:


Simplifying
99 = 7x + 3(2x + -6)

Reorder the terms:
99 = 7x + 3(-6 + 2x)
99 = 7x + (-6 * 3 + 2x * 3)
99 = 7x + (-18 + 6x)

Reorder the terms:
99 = -18 + 7x + 6x

Combine like terms: 7x + 6x = 13x
99 = -18 + 13x

Solving
99 = -18 + 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
99 + -13x = -18 + 13x + -13x

Combine like terms: 13x + -13x = 0
99 + -13x = -18 + 0
99 + -13x = -18

Add '-99' to each side of the equation.
99 + -99 + -13x = -18 + -99

Combine like terms: 99 + -99 = 0
0 + -13x = -18 + -99
-13x = -18 + -99

Combine like terms: -18 + -99 = -117
-13x = -117

Divide each side by '-13'.
x = 9

Simplifying
x = 9

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