Answer :
Answer:
(-4 + 3)
Step-by-step explanation:
–3x + y = 15
(-1) –3x + 7y = –3
–3x + y = 15
+ 3x - 7y = 3
6y = 18
/6 /6
y = 3
–3x + 3 = 15
- 3 -3
-3x = 12
/-3 /-3
x = -4
Answer:
(-4 + 3)
Step-by-step explanation:
–3x + y = 15
(-1) –3x + 7y = –3
–3x + y = 15
+ 3x - 7y = 3
6y = 18
/6 /6
y = 3
–3x + 3 = 15
- 3 -3
-3x = 12
/-3 /-3
x = -4