9x-(-9)=72

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


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

Multiply -1 * -9
9x + 9 = 72

Reorder the terms:
9 + 9x = 72

Solving
9 + 9x = 72

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 9x = 72 + -9

Combine like terms: 9 + -9 = 0
0 + 9x = 72 + -9
9x = 72 + -9

Combine like terms: 72 + -9 = 63
9x = 63

Divide each side by '9'.
x = 7

Simplifying
x = 7

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