Question

Terry bought some gum and candy. The number of packages of chewing gum was one more than the number of mints. The number of mints was three times the number of candy bars. If gum was 6 cents a package, mints were 3 cents each, and candy bars were 10 cents each, how many of each did he get for 80 cents?

Answer 1

what have they told you?
g = m+1
m = 3c
6g+3m+10c = 80

Now crank it out

Answer 2

how?

Answer 3

Isolate and then Substitute

Answer 4

Well, it's already isolated for you anyway, so it should be even easier.