Helen rented a kayak at the lake. There is a charge of $10 as an initial fee and then $2 an hour for every hour that she uses th
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We have
First, we can combine like terms 3y and -7y to get -4y.
Then, we have
We could then subtract 8 on both sides to get 
Finally, we isolate y completely by dividing both sides by -4, to get
First, we can combine like terms 3y and -7y to get -4y.
Then, we have
Finally, we isolate y completely by dividing both sides by -4, to get