x-3+7x=-99

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Solution for x-3+7x=-99 equation:


Simplifying
x + -3 + 7x = -99

Reorder the terms:
-3 + x + 7x = -99

Combine like terms: x + 7x = 8x
-3 + 8x = -99

Solving
-3 + 8x = -99

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 8x = -99 + 3

Combine like terms: -3 + 3 = 0
0 + 8x = -99 + 3
8x = -99 + 3

Combine like terms: -99 + 3 = -96
8x = -96

Divide each side by '8'.
x = -12

Simplifying
x = -12

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