Question

Please help ASAP I need it done quick

Answer 1

see below

Explanation:

bh + hr = 25

Factor out an h

h( b+r) = 25

Divide each side by ( b+r)

h( b+r)/( b+r) = 25/( b+r)

h = 25/( b+r)

Now solve for r

bh + hr = 25

Subtract bh from each side

bh -bh+ hr = 25-bh

hr = 25 -bh

Divide by h

hr/h = 25/h -bh/h

r = 25/h -b