2y+-4+y=20

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Solution for 2y+-4+y=20 equation: 


Simplifying
2y + -4 + y = 20

Reorder the terms:
-4 + 2y + y = 20

Combine like terms: 2y + y = 3y
-4 + 3y = 20

Solving
-4 + 3y = 20

Solving for variable 'y'.

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

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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