y+18-18=39-18

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Solution for y+18-18=39-18 equation: 


Simplifying
y + 18 + -18 = 39 + -18

Reorder the terms:
18 + -18 + y = 39 + -18

Combine like terms: 18 + -18 = 0
0 + y = 39 + -18
y = 39 + -18

Combine like terms: 39 + -18 = 21
y = 21

Solving
y = 21

Solving for variable 'y'.

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

Simplifying
y = 21

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