40x-20y=90

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Solution for 40x-20y=90 equation: 


Simplifying
40x + -20y = 90

Solving
40x + -20y = 90

Solving for variable 'x'.

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

Add '20y' to each side of the equation.
40x + -20y + 20y = 90 + 20y

Combine like terms: -20y + 20y = 0
40x + 0 = 90 + 20y
40x = 90 + 20y

Divide each side by '40'.
x = 2.25 + 0.5y

Simplifying
x = 2.25 + 0.5y

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