Question

Your friend evaluates the expression when m = 10. Is your friend correct?

3m - 6 = 3 x 10 - 6 = 3 x 4 = 12

Answer 1

No, "your friend" is incorrect in that he/she subtracted 6 from 10 instead of multiplying 3 by 10. The bolded portion is incorrect 3m - 6 = 3 x 10 - 6 = 3 x 4 = 12. It should've read: 3m - 6 = 3 x 10 - 6 = 30 - 6 = 24