-y-4x=-20

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Solution for -y-4x=-20 equation: 


Simplifying
-1y + -4x = -20

Reorder the terms:
-4x + -1y = -20

Solving
-4x + -1y = -20

Solving for variable 'x'.

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

Add 'y' to each side of the equation.
-4x + -1y + y = -20 + y

Combine like terms: -1y + y = 0
-4x + 0 = -20 + y
-4x = -20 + y

Divide each side by '-4'.
x = 5 + -0.25y

Simplifying
x = 5 + -0.25y

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