18x-(7x-9)=86

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Solution for 18x-(7x-9)=86 equation:


Simplifying
18x + -1(7x + -9) = 86

Reorder the terms:
18x + -1(-9 + 7x) = 86
18x + (-9 * -1 + 7x * -1) = 86
18x + (9 + -7x) = 86

Reorder the terms:
9 + 18x + -7x = 86

Combine like terms: 18x + -7x = 11x
9 + 11x = 86

Solving
9 + 11x = 86

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 + 11x = 86 + -9

Combine like terms: 9 + -9 = 0
0 + 11x = 86 + -9
11x = 86 + -9

Combine like terms: 86 + -9 = 77
11x = 77

Divide each side by '11'.
x = 7

Simplifying
x = 7

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