8(9-x)=-72

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Solution for 8(9-x)=-72 equation: 


Simplifying
8(9 + -1x) = -72
(9 * 8 + -1x * 8) = -72
(72 + -8x) = -72

Solving
72 + -8x = -72

Solving for variable 'x'.

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

Add '-72' to each side of the equation.
72 + -72 + -8x = -72 + -72

Combine like terms: 72 + -72 = 0
0 + -8x = -72 + -72
-8x = -72 + -72

Combine like terms: -72 + -72 = -144
-8x = -144

Divide each side by '-8'.
x = 18

Simplifying
x = 18

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