9(x+20)-7x=216

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Solution for 9(x+20)-7x=216 equation:


Simplifying
9(x + 20) + -7x = 216

Reorder the terms:
9(20 + x) + -7x = 216
(20 * 9 + x * 9) + -7x = 216
(180 + 9x) + -7x = 216

Combine like terms: 9x + -7x = 2x
180 + 2x = 216

Solving
180 + 2x = 216

Solving for variable 'x'.

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

Add '-180' to each side of the equation.
180 + -180 + 2x = 216 + -180

Combine like terms: 180 + -180 = 0
0 + 2x = 216 + -180
2x = 216 + -180

Combine like terms: 216 + -180 = 36
2x = 36

Divide each side by '2'.
x = 18

Simplifying
x = 18

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