Pls help me I will give thee a brainliest award.

Answer:
y=3+6x
Step-by-step explanation:
You plug in the x value into the equation so you have to use choice of elimination.
(all of them work for the first input which is 1, but when you plug in the second input only y=3+6x)...
y=3+6(2)
y=3+12
y=15