20*y+40=100

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Solution for 20*y+40=100 equation: 



20y+40=100

We move all terms to the left:

20y+40-(100)=0

We add all the numbers together, and all the variables

20y-60=0

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

20y=60

y=60/20

y=3

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