9x-81=18-2x

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Solution for 9x-81=18-2x equation:


Simplifying
9x + -81 = 18 + -2x

Reorder the terms:
-81 + 9x = 18 + -2x

Solving
-81 + 9x = 18 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-81 + 9x + 2x = 18 + -2x + 2x

Combine like terms: 9x + 2x = 11x
-81 + 11x = 18 + -2x + 2x

Combine like terms: -2x + 2x = 0
-81 + 11x = 18 + 0
-81 + 11x = 18

Add '81' to each side of the equation.
-81 + 81 + 11x = 18 + 81

Combine like terms: -81 + 81 = 0
0 + 11x = 18 + 81
11x = 18 + 81

Combine like terms: 18 + 81 = 99
11x = 99

Divide each side by '11'.
x = 9

Simplifying
x = 9

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