Question

If a+ar =b+r the value of an item of b and r can be expressed as

A) 1+b
over
r+b
B) b/r +1

C) 1+b
over
r
D) b+r
over
1+r

Please help ???

Answer 1

`a+ar=b+r\\ a(1+r)=b+r\\ a=(b+r)/(1+r)`