18x+9-7x+6=81

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Solution for 18x+9-7x+6=81 equation:


Simplifying
18x + 9 + -7x + 6 = 81

Reorder the terms:
9 + 6 + 18x + -7x = 81

Combine like terms: 9 + 6 = 15
15 + 18x + -7x = 81

Combine like terms: 18x + -7x = 11x
15 + 11x = 81

Solving
15 + 11x = 81

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 11x = 81 + -15

Combine like terms: 15 + -15 = 0
0 + 11x = 81 + -15
11x = 81 + -15

Combine like terms: 81 + -15 = 66
11x = 66

Divide each side by '11'.
x = 6

Simplifying
x = 6

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