4y-4=y+20

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


Simplifying
4y + -4 = y + 20

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

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

Solving
-4 + 4y = 20 + y

Solving for variable 'y'.

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

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

Combine like terms: 4y + -1y = 3y
-4 + 3y = 20 + y + -1y

Combine like terms: y + -1y = 0
-4 + 3y = 20 + 0
-4 + 3y = 20

Add '4' to each side of the equation.
-4 + 4 + 3y = 20 + 4

Combine like terms: -4 + 4 = 0
0 + 3y = 20 + 4
3y = 20 + 4

Combine like terms: 20 + 4 = 24
3y = 24

Divide each side by '3'.
y = 8

Simplifying
y = 8

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