Question

If a point (-3/5,b) is on the graph of the equation 2x+3y=6 and also on the graph of y=x+3, what is the value of b?

Answer 1

Since the point satisfies the equation
  y = x +3
you have
  b = (-3/5) +3 = 12/5 . . . . . . . matches A. 12/5