Answer: I think it's C.Multiply the top equation by 3 and the bottom equation by 4
Step-by-step explanation:
Multiplying the top equation by 3 you get:
3(4x – 2y) = 3∗7
12x - 6y = 21 (eq.1)
Multiplying the bottom equation by 4 you get:
4(3x – 3y) = 4∗15
12x - 12y = 60 (eq.2)
Now, if you subtact eq.2 from eq.1 you get:
(12x - 6y = 21 )
-
(12x - 12y = 60)
___________________
0x + [- 6y -(-12y)] = 21 - 60
Carrying out the calculation you get:
6y = -39
y = -39/6
y = -13/2
