20x-10y=-40

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Solution for 20x-10y=-40 equation: 


Simplifying
20x + -10y = -40

Solving
20x + -10y = -40

Solving for variable 'x'.

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

Add '10y' to each side of the equation.
20x + -10y + 10y = -40 + 10y

Combine like terms: -10y + 10y = 0
20x + 0 = -40 + 10y
20x = -40 + 10y

Divide each side by '20'.
x = -2 + 0.5y

Simplifying
x = -2 + 0.5y

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