20+25+3x=180

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Solution for 20+25+3x=180 equation: 


Simplifying
20 + 25 + 3x = 180

Combine like terms: 20 + 25 = 45
45 + 3x = 180

Solving
45 + 3x = 180

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + 3x = 180 + -45

Combine like terms: 45 + -45 = 0
0 + 3x = 180 + -45
3x = 180 + -45

Combine like terms: 180 + -45 = 135
3x = 135

Divide each side by '3'.
x = 45

Simplifying
x = 45

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