4-(y-8)=20

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Solution for 4-(y-8)=20 equation: 


Simplifying
4 + -1(y + -8) = 20

Reorder the terms:
4 + -1(-8 + y) = 20
4 + (-8 * -1 + y * -1) = 20
4 + (8 + -1y) = 20

Combine like terms: 4 + 8 = 12
12 + -1y = 20

Solving
12 + -1y = 20

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + -1y = 20 + -12

Combine like terms: 12 + -12 = 0
0 + -1y = 20 + -12
-1y = 20 + -12

Combine like terms: 20 + -12 = 8
-1y = 8

Divide each side by '-1'.
y = -8

Simplifying
y = -8

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