3x+15+135=180

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Solution for 3x+15+135=180 equation:


Simplifying
3x + 15 + 135 = 180

Reorder the terms:
15 + 135 + 3x = 180

Combine like terms: 15 + 135 = 150
150 + 3x = 180

Solving
150 + 3x = 180

Solving for variable 'x'.

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

Add '-150' to each side of the equation.
150 + -150 + 3x = 180 + -150

Combine like terms: 150 + -150 = 0
0 + 3x = 180 + -150
3x = 180 + -150

Combine like terms: 180 + -150 = 30
3x = 30

Divide each side by '3'.
x = 10

Simplifying
x = 10

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