Question

Given that r cannot equal 0 and r=5w=7a, find the value of r-w in terms of a

Answer 1

just substitute from given equation r-w=7a-7a/5= 28a/5

Answer 2

Value of r-w in terms of a is:

r-w=
`(28)/(5)a`

Explanation:

We are given that:

r=5w=7a

We have to find the value of r-w in terms of a

r-w=5w-w (Since r=5w)

= 4w

=
`4* (7)/(5)a` (Since, 5w=7a)

=
`(28)/(5)a`

Hence, Value of r-w in terms of a is:

r-w=
`(28)/(5)a`