-720=x-9x

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Solution for -720=x-9x equation:


Simplifying
-720 = x + -9x

Combine like terms: x + -9x = -8x
-720 = -8x

Solving
-720 = -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
-720 + 8x = -8x + 8x

Combine like terms: -8x + 8x = 0
-720 + 8x = 0

Add '720' to each side of the equation.
-720 + 720 + 8x = 0 + 720

Combine like terms: -720 + 720 = 0
0 + 8x = 0 + 720
8x = 0 + 720

Combine like terms: 0 + 720 = 720
8x = 720

Divide each side by '8'.
x = 90

Simplifying
x = 90

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