8y-3y-13=78.4

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Solution for 8y-3y-13=78.4 equation: 



8y-3y-13=78.4

We move all terms to the left:

8y-3y-13-(78.4)=0

We add all the numbers together, and all the variables

5y-91.4=0

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

5y=91.4

y=91.4/5

y=18+1/3.57142857143

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