Help me I’m very stupid

1.) 2x + y = 3 2.) x - 2y = -1 if equation 1 is multiplied by 2 and then the equations are added, the result is a.3x = 2 b.3x = 5 c.5x = 5

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.