y-2=21

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Solution for y-2=21 equation: 


Simplifying
y + -2 = 21

Reorder the terms:
-2 + y = 21

Solving
-2 + y = 21

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 + y = 21 + 2

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

Combine like terms: 21 + 2 = 23
y = 23

Simplifying
y = 23

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