Answer:
x = 2
y = 3
Step-by-step explanation:
6x + 6y = 30 ...(1)
15x - 6y = 12 ...(2)
Using Elimination method,
Add (1) to (2)
21x = 42
Divide both sides by 21
x = 42/21 = 2
x = 2
Substitute x = 2 in (1)
6(2) + 6y = 30
12 + 6y = 30
6y = 30 - 12 = 18
6y = 18
Divide both sides by 6
y = 3