Question

What is 15x+3y=9
y=-5x-3​

Answer 1

x = 3/5

Explanation:

15x+3(5x-3) = 9

15x+15x-9 =9

30x-9 = 9

30x-9+9 = 9+9

30x = 18

x = 18/30

x = 3/5