21=2y-11

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Solution for 21=2y-11 equation:


Simplifying
21 = 2y + -11

Reorder the terms:
21 = -11 + 2y

Solving
21 = -11 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
21 + -2y = -11 + 2y + -2y

Combine like terms: 2y + -2y = 0
21 + -2y = -11 + 0
21 + -2y = -11

Add '-21' to each side of the equation.
21 + -21 + -2y = -11 + -21

Combine like terms: 21 + -21 = 0
0 + -2y = -11 + -21
-2y = -11 + -21

Combine like terms: -11 + -21 = -32
-2y = -32

Divide each side by '-2'.
y = 16

Simplifying
y = 16

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