3y-20=y+80

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Solution for 3y-20=y+80 equation:


Simplifying
3y + -20 = y + 80

Reorder the terms:
-20 + 3y = y + 80

Reorder the terms:
-20 + 3y = 80 + y

Solving
-20 + 3y = 80 + 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.
-20 + 3y + -1y = 80 + y + -1y

Combine like terms: 3y + -1y = 2y
-20 + 2y = 80 + y + -1y

Combine like terms: y + -1y = 0
-20 + 2y = 80 + 0
-20 + 2y = 80

Add '20' to each side of the equation.
-20 + 20 + 2y = 80 + 20

Combine like terms: -20 + 20 = 0
0 + 2y = 80 + 20
2y = 80 + 20

Combine like terms: 80 + 20 = 100
2y = 100

Divide each side by '2'.
y = 50

Simplifying
y = 50

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