Answer:
R = hx - xy
Step-by-step explanation:
[tex]\frac{R}{x} + y = h[/tex]
Substract 'y' to both sides
[tex]\frac{R}{x} = h - y[/tex]
Multiple 'x' to both sides
[tex]R = x(h-y)[/tex]
or
[tex]R = hx -xy[/tex]
