7x-81+9x-56=81

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Solution for 7x-81+9x-56=81 equation:


Simplifying
7x + -81 + 9x + -56 = 81

Reorder the terms:
-81 + -56 + 7x + 9x = 81

Combine like terms: -81 + -56 = -137
-137 + 7x + 9x = 81

Combine like terms: 7x + 9x = 16x
-137 + 16x = 81

Solving
-137 + 16x = 81

Solving for variable 'x'.

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

Add '137' to each side of the equation.
-137 + 137 + 16x = 81 + 137

Combine like terms: -137 + 137 = 0
0 + 16x = 81 + 137
16x = 81 + 137

Combine like terms: 81 + 137 = 218
16x = 218

Divide each side by '16'.
x = 13.625

Simplifying
x = 13.625

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