algebra
posted by Sarah on .
how do you solve this problem by elimination method 5r3s=14 3r+5s=56

5r3s=14 times 3
3r+5s=56 times 5
15 r  9 s = 42
15 r + 25s = 280

0 r  34 s =  238
so
s = 238/34 which is 7
go back and get r