-4(z+y)=20

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Solution for -4(z+y)=20 equation: 


Simplifying
-4(z + y) = 20

Reorder the terms:
-4(y + z) = 20
(y * -4 + z * -4) = 20
(-4y + -4z) = 20

Solving
-4y + -4z = 20

Solving for variable 'y'.

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

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

Combine like terms: -4z + 4z = 0
-4y + 0 = 20 + 4z
-4y = 20 + 4z

Divide each side by '-4'.
y = -5 + -1z

Simplifying
y = -5 + -1z

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