2y+4.2=9

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Solution for 2y+4.2=9 equation: 



2y+4.2=9

We move all terms to the left:

2y+4.2-(9)=0

We add all the numbers together, and all the variables

2y-4.8=0

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

2y=4.8

y=4.8/2

y=2+0.8/2

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