20.4=16.5+y

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Solution for 20.4=16.5+y equation: 



20.4=16.5+y

We move all terms to the left:

20.4-(16.5+y)=0

We add all the numbers together, and all the variables

-(y+16.5)+20.4=0

We get rid of parentheses

-y-16.5+20.4=0

We add all the numbers together, and all the variables

-1y+3.9=0

We move all terms containing y to the left, all other terms to the right

-y=-3.9

y=-3.9/-1

y=3+0.9/1

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