8(y-1)-4=20

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Solution for 8(y-1)-4=20 equation:


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

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

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

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

Solving
-12 + 8y = 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 + 8y = 20 + 12

Combine like terms: -12 + 12 = 0
0 + 8y = 20 + 12
8y = 20 + 12

Combine like terms: 20 + 12 = 32
8y = 32

Divide each side by '8'.
y = 4

Simplifying
y = 4

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