7(3+4x)-8x=-99

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Solution for 7(3+4x)-8x=-99 equation:


Simplifying
7(3 + 4x) + -8x = -99
(3 * 7 + 4x * 7) + -8x = -99
(21 + 28x) + -8x = -99

Combine like terms: 28x + -8x = 20x
21 + 20x = -99

Solving
21 + 20x = -99

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 20x = -99 + -21

Combine like terms: 21 + -21 = 0
0 + 20x = -99 + -21
20x = -99 + -21

Combine like terms: -99 + -21 = -120
20x = -120

Divide each side by '20'.
x = -6

Simplifying
x = -6

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