Answer:
y= -3x +5, y= 11, y= 5, y= -4.
Step-by-step explanation:
Well first you want to just find the equation of y like you said and subtract 3x from each side to get y by itself which gives you y= -3x +5. Then you plug in each x value for x separate times of course and solve each time to get your different values for y. I think this is what you're looking for if not I'm sorry.
