9x-30+3x-30=180

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Solution for 9x-30+3x-30=180 equation:


Simplifying
9x + -30 + 3x + -30 = 180

Reorder the terms:
-30 + -30 + 9x + 3x = 180

Combine like terms: -30 + -30 = -60
-60 + 9x + 3x = 180

Combine like terms: 9x + 3x = 12x
-60 + 12x = 180

Solving
-60 + 12x = 180

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 12x = 180 + 60

Combine like terms: -60 + 60 = 0
0 + 12x = 180 + 60
12x = 180 + 60

Combine like terms: 180 + 60 = 240
12x = 240

Divide each side by '12'.
x = 20

Simplifying
x = 20

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