Question

Can anyone hknow number 2?

Answer 1

n = y/(r+s)

Explanation:

(rn+sn) / y = 1

Multiply each side by y

(rn+sn) / y *y= 1*y

rn+sn = y

Factor out n

n(r+s) = y

Divide each side by (r+s)

n(r+s) / (r+s) = y/(r+s)

n = y/(r+s)