-5(-4.2+-0.2y)-y=21

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Solution for -5(-4.2+-0.2y)-y=21 equation: 



-5(-4.2+-0.2y)-y=21

We move all terms to the left:

-5(-4.2+-0.2y)-y-(21)=0

We add all the numbers together, and all the variables

-5(-0.2y)-y-21=0

We add all the numbers together, and all the variables

-1y-5(-0.2y)-21=0

We multiply parentheses

-1y-0y-21=0

We add all the numbers together, and all the variables

-2y-21=0

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

-2y=21

y=21/-2

y=-10+1/2

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