the boys bought 5 packages of hot dogs for 22.50 at the store.If each package of hotdogs had 9 hotdogs in each, what is the cost
of each hotdog
2 answers:
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We need to leave m alone on the right hand side, so let's move everything else to the left hand side.
First of all, we can subtract b from both sides to get
Now, we can divide both sides by c to get
And so we solved the expression for m, because we have written an expression in the form , where the right hand side doesn't depend on m.