(9x+12)+(2x+3)=180

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Solution for (9x+12)+(2x+3)=180 equation:


Simplifying
(9x + 12) + (2x + 3) = 180

Reorder the terms:
(12 + 9x) + (2x + 3) = 180

Remove parenthesis around (12 + 9x)
12 + 9x + (2x + 3) = 180

Reorder the terms:
12 + 9x + (3 + 2x) = 180

Remove parenthesis around (3 + 2x)
12 + 9x + 3 + 2x = 180

Reorder the terms:
12 + 3 + 9x + 2x = 180

Combine like terms: 12 + 3 = 15
15 + 9x + 2x = 180

Combine like terms: 9x + 2x = 11x
15 + 11x = 180

Solving
15 + 11x = 180

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 11x = 180 + -15

Combine like terms: 15 + -15 = 0
0 + 11x = 180 + -15
11x = 180 + -15

Combine like terms: 180 + -15 = 165
11x = 165

Divide each side by '11'.
x = 15

Simplifying
x = 15

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