8y-4x=20

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Solution for 8y-4x=20 equation: 


Simplifying
8y + -4x = 20

Reorder the terms:
-4x + 8y = 20

Solving
-4x + 8y = 20

Solving for variable 'x'.

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

Add '-8y' to each side of the equation.
-4x + 8y + -8y = 20 + -8y

Combine like terms: 8y + -8y = 0
-4x + 0 = 20 + -8y
-4x = 20 + -8y

Divide each side by '-4'.
x = -5 + 2y

Simplifying
x = -5 + 2y

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