y+9=30

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Solution for y+9=30 equation: 


Simplifying
y + 9 = 30

Reorder the terms:
9 + y = 30

Solving
9 + y = 30

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 = 30 + -9

Combine like terms: 9 + -9 = 0
0 + y = 30 + -9
y = 30 + -9

Combine like terms: 30 + -9 = 21
y = 21

Simplifying
y = 21

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