Answer:
7x-4y-3y = -14 (bring the positive 3 towards the other side)
7x-7y = -14
-7y = -14-7x (since the question asks for y, bring the x to the other side to leave y with its coefficient)
y = (-14-7x) ÷ -7 (divide the whole equation by -7 to leave the y by itself)
y = 2+x