Question

Mr. Smith has 17 18-cent notebooks and 7-cent pencils. The notebooks and pencils are worth $1.85. How many notebooks and how many pencils does Mr. Smith have?

Answer 1

number of notebooks : n
number of pencils : 17-n

18n + 7(17-n) = 185

solve ...

Answer 2

I still can't solve it. I am getting stuck.

Answer 3

What grade level is this ???

18n + 7(17-n) = 185
18n + 119 - 7n = 185
11n = 66
n = 6

so 6 notebooks and 11 pencils

check: 6x18 + 11x7 = 185