An unknown number y is 15 more than an unknown number. The numbery is also x less than 8. The equations to find x andy are shown below.
y=x+ 15
y=-x+8
Which of the following statements is a correct step to find x and y? (4 points)
оа
Multiply the equations to eliminate y

Ob
Add the equations to
eliminate x.

Write the points where the graphs of the equations intersect the x-axis.

Write the points where the graphs of the equations intersect the y-axis.