11-y=20

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Solution for 11-y=20 equation: 


Simplifying
11 + -1y = 20

Solving
11 + -1y = 20

Solving for variable 'y'.

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

Add '-11' to each side of the equation.
11 + -11 + -1y = 20 + -11

Combine like terms: 11 + -11 = 0
0 + -1y = 20 + -11
-1y = 20 + -11

Combine like terms: 20 + -11 = 9
-1y = 9

Divide each side by '-1'.
y = -9

Simplifying
y = -9

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