Well, the standard equation is in the form:
ax + bx = c (constant).
Thus, x and b must be isolated together on one side with the constant on the other. The equation which satisfies this is:
A. -2x + y = 5
$59.40 was the original price for the shoes

=

Multiply both sides by 15
6 =

Multiply both sides by c
6c = 30 Divide both sides by 6
c = 5
Answer:
you are going to have to look from left to right and see if it is above or below