10y+21=3

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Solution for 10y+21=3 equation: 



10y+21=3

We move all terms to the left:

10y+21-(3)=0

We add all the numbers together, and all the variables

10y+18=0

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

10y=-18

y=-18/10

y=-1+4/5

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