2-2y-1+y=-20

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Solution for 2-2y-1+y=-20 equation:


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

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

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

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

Solving
1 + -1y = -20

Solving for variable 'y'.

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

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

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

Combine like terms: -20 + -1 = -21
-1y = -21

Divide each side by '-1'.
y = 21

Simplifying
y = 21

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