0.4y+3=1.6y-9

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Solution for 0.4y+3=1.6y-9 equation: 



0.4y+3=1.6y-9

We move all terms to the left:

0.4y+3-(1.6y-9)=0

We get rid of parentheses

0.4y-1.6y+9+3=0

We add all the numbers together, and all the variables

-1.2y+12=0

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

-1.2y=-12

y=-12/-1.2

y=+10

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