180=(9x-128)+(9x-70)

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Solution for 180=(9x-128)+(9x-70) equation: 


Simplifying
180 = (9x + -128) + (9x + -70)

Reorder the terms:
180 = (-128 + 9x) + (9x + -70)

Remove parenthesis around (-128 + 9x)
180 = -128 + 9x + (9x + -70)

Reorder the terms:
180 = -128 + 9x + (-70 + 9x)

Remove parenthesis around (-70 + 9x)
180 = -128 + 9x + -70 + 9x

Reorder the terms:
180 = -128 + -70 + 9x + 9x

Combine like terms: -128 + -70 = -198
180 = -198 + 9x + 9x

Combine like terms: 9x + 9x = 18x
180 = -198 + 18x

Solving
180 = -198 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
180 + -18x = -198 + 18x + -18x

Combine like terms: 18x + -18x = 0
180 + -18x = -198 + 0
180 + -18x = -198

Add '-180' to each side of the equation.
180 + -180 + -18x = -198 + -180

Combine like terms: 180 + -180 = 0
0 + -18x = -198 + -180
-18x = -198 + -180

Combine like terms: -198 + -180 = -378
-18x = -378

Divide each side by '-18'.
x = 21

Simplifying
x = 21

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