When you are solving for m you want to seclude m on one side,
So start by subtracting 7 on both sides because you want to use inverse operations so since it’s positive use negative
2m = 2
Now since you use inverse operations you want the m by itself to since 2m is bound through multiplication use division so divide 2 on both sides and you’re left with
Step-by-step explanation: She drove 7 hours at an average of 60 mph. You have to do 7 times 60 because each hour she goes 60 miles. 7 multiplied by 60 will give you 420.