Question

Which expression is equivalent to 1/3b - 7?

Answer 1

The answer Is 1/3(b-21)

Answer 2

`(1)/(3)(b-21)`

Explanation:

We need to find an equivalent expression for
`(1)/(3)b-7`

The denominator of first fraction is 3 and that of other is 1.

`(1)/(3)b-7\\\\=(b-21)/(3)`

or

`=(1)/(3)(b-21)`

Hence, the equivalent expression is
`(1)/(3)(b-21)`.