4.2+y=7.5

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Solution for 4.2+y=7.5 equation: 



4.2+y=7.5

We move all terms to the left:

4.2+y-(7.5)=0

We add all the numbers together, and all the variables

y-3.3=0

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

y=3.3

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