45+5x-20=180

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Solution for 45+5x-20=180 equation: 


Simplifying
45 + 5x + -20 = 180

Reorder the terms:
45 + -20 + 5x = 180

Combine like terms: 45 + -20 = 25
25 + 5x = 180

Solving
25 + 5x = 180

Solving for variable 'x'.

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

Add '-25' to each side of the equation.
25 + -25 + 5x = 180 + -25

Combine like terms: 25 + -25 = 0
0 + 5x = 180 + -25
5x = 180 + -25

Combine like terms: 180 + -25 = 155
5x = 155

Divide each side by '5'.
x = 31

Simplifying
x = 31

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