Question

A shipment of nuts contained 3-lb boxes of cashews and 4-lb boxes of pecans. There were
20 fewer boxes of pecans than cashews, and the total weight of the shipment was 172 lbs. Find
the total weight of all the cashews in the shipment. using 2 variables?

Answer 1

@jdoe0001 what equations should i use?

Answer 2

i did 3x+80-4x for the first and y=3x for the 2nd but they give me a negative answer

Answer 3

@thomaster