Question

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

Answer 1

The answer Is 1/3(b-21)

Answer 2

Answer:

$\dfrac{1}{3}(b-21)$

Step-by-step explanation:

We need to find an equivalent expression for $\dfrac{1}{3}b-7$

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

$\dfrac{1}{3}b-7\\\\=\dfrac{b-21}{3}$

or

$=\dfrac{1}{3}(b-21)$

Hence, the equivalent expression is $\dfrac{1}{3}(b-21)$.