-21+y=7

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Solution for -21+y=7 equation: 


Simplifying
-21 + y = 7

Solving
-21 + y = 7

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + y = 7 + 21

Combine like terms: -21 + 21 = 0
0 + y = 7 + 21
y = 7 + 21

Combine like terms: 7 + 21 = 28
y = 28

Simplifying
y = 28

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