Question

how to solve the system of equation 9x+y=2 and -4x-y=-17

Answer 1

First solve for y. If you subtract 9x from both sides you will have y. Then you substitute y in the second problem. At which point you have a solution for x, then you can return and find a solution for y.

Answer 2

thank youuuuuu!!!!!!!

Answer 3

285p+15f=1275

270p+30f=1350 f represents the # of calories in gram of fat
and p represents the # of calories how many calories are in a gram of fat ?

Answer 4

find the y first