y-y+2y+2=20

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


Simplifying
y + -1y + 2y + 2 = 20

Reorder the terms:
2 + y + -1y + 2y = 20

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

Solving
2 + 2y = 20

Solving for variable 'y'.

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

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

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

Combine like terms: 20 + -2 = 18
2y = 18

Divide each side by '2'.
y = 9

Simplifying
y = 9

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