y-9=10+2

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Solution for y-9=10+2 equation: 


Simplifying
y + -9 = 10 + 2

Reorder the terms:
-9 + y = 10 + 2

Combine like terms: 10 + 2 = 12
-9 + y = 12

Solving
-9 + y = 12

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + y = 12 + 9

Combine like terms: -9 + 9 = 0
0 + y = 12 + 9
y = 12 + 9

Combine like terms: 12 + 9 = 21
y = 21

Simplifying
y = 21

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