-20-y=10

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Solution for -20-y=10 equation: 


Simplifying
-20 + -1y = 10

Solving
-20 + -1y = 10

Solving for variable 'y'.

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

Add '20' to each side of the equation.
-20 + 20 + -1y = 10 + 20

Combine like terms: -20 + 20 = 0
0 + -1y = 10 + 20
-1y = 10 + 20

Combine like terms: 10 + 20 = 30
-1y = 30

Divide each side by '-1'.
y = -30

Simplifying
y = -30

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