0.5(-1)-0.3y=21

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Solution for 0.5(-1)-0.3y=21 equation: 



0.5(-1)-0.3y=21

We move all terms to the left:

0.5(-1)-0.3y-(21)=0

determiningTheFunctionDomain
-0.3y-21+0.5(-1)=0

We add all the numbers together, and all the variables

-0.3y-21.5=0

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

-0.3y=21.5

y=21.5/-0.3

y=-71+0.2/0.3

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