40y-20x=180

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Solution for 40y-20x=180 equation: 


Simplifying
40y + -20x = 180

Reorder the terms:
-20x + 40y = 180

Solving
-20x + 40y = 180

Solving for variable 'x'.

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

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

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

Divide each side by '-20'.
x = -9 + 2y

Simplifying
x = -9 + 2y

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