An unknown number y is 20 more than an unknown number x. The number y is also x less than 2. The equations to find x and y are shown below: y = x + 20
y = −x + 2

Which is a correct step to find x and y?

Multiply the equations to eliminate y.
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.