Answer:
y = x(qp - z)
Explanation:
xy = qp - zy
Divide by y (on the right side of the equation)
xy/y = qp - z
Multiply by x on both sides
y/y = x(qp - z)
There is an unsaid 1 in front of both y values on the left side of the equation. We know that 1 divided by 1 = 1, so 1y/1y = y (or y/y = y)
y = x(qp - z)