7x-12+2x+9=180

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Solution for 7x-12+2x+9=180 equation:


Simplifying
7x + -12 + 2x + 9 = 180

Reorder the terms:
-12 + 9 + 7x + 2x = 180

Combine like terms: -12 + 9 = -3
-3 + 7x + 2x = 180

Combine like terms: 7x + 2x = 9x
-3 + 9x = 180

Solving
-3 + 9x = 180

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 9x = 180 + 3

Combine like terms: -3 + 3 = 0
0 + 9x = 180 + 3
9x = 180 + 3

Combine like terms: 180 + 3 = 183
9x = 183

Divide each side by '9'.
x = 20.33333333

Simplifying
x = 20.33333333

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