20x+40=180

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Solution for 20x+40=180 equation: 


Simplifying
20x + 40 = 180

Reorder the terms:
40 + 20x = 180

Solving
40 + 20x = 180

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + 20x = 180 + -40

Combine like terms: 40 + -40 = 0
0 + 20x = 180 + -40
20x = 180 + -40

Combine like terms: 180 + -40 = 140
20x = 140

Divide each side by '20'.
x = 7

Simplifying
x = 7

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