-7.8=-13+1.3y

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Solution for -7.8=-13+1.3y equation: 



-7.8=-13+1.3y

We move all terms to the left:

-7.8-(-13+1.3y)=0

We add all the numbers together, and all the variables

-(1.3y-13)-7.8=0

We get rid of parentheses

-1.3y+13-7.8=0

We add all the numbers together, and all the variables

-1.3y+5.2=0

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

-1.3y=-5.2

y=-5.2/-1.3

y=+4

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