9x-72-13=-31

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Solution for 9x-72-13=-31 equation:


Simplifying
9x + -72 + -13 = -31

Reorder the terms:
-72 + -13 + 9x = -31

Combine like terms: -72 + -13 = -85
-85 + 9x = -31

Solving
-85 + 9x = -31

Solving for variable 'x'.

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

Add '85' to each side of the equation.
-85 + 85 + 9x = -31 + 85

Combine like terms: -85 + 85 = 0
0 + 9x = -31 + 85
9x = -31 + 85

Combine like terms: -31 + 85 = 54
9x = 54

Divide each side by '9'.
x = 6

Simplifying
x = 6

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