3x + 3y = 12
x-5y = 10
-3(x - 5y=10)
. -3x+15 y=-30
+(3x + 3y = 12)
18y=-18
y=-1
Jillian is solving the system of equations using elimination. Her work is shown. What should be her next step.

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm