I just need help setting up the equations . I dont know if they are asking to find cans or weeks.

Question

Students in the Healthy Planet Club at Eagle High School are collecting aluminum cans as part of a community cleanup project. Together, the 9th graders and 10th graders hope to collect 10,000 cans. Before the contest begins the 9th graders class advisor gave his students 200 cans that he saved in his garage. The 10th grade class advisor gave her class 850 cans and her family and neighbors had collected. The 9th graders brought in 400 cans per week and the tankers collected 350 each

Represent each class with an equation to find any variables used in the equation when will the 9th and 10th graders have the same number of cans? How many cans will they have? How many weeks before 10,000 cans are collected by the two groups working together?

Answer 1

after w weeks, the amounts are:
9th grade = 200+400w
10th grade = 850+350w

now you should be able to answer the questions.

Answer 2

Thank you steve thats what i had but wasnt sure