Question

Simplify the following expression. 1/3 (27-21x)

A. 9+7

B. 9-7x

C. 9+7x

D. 9-7

Answer 1

1/3 * 3(9-7x)
9-7x
Answer is B.

Answer 2

simplification :-  

1/3  (27-21x )

3( 9 -  7x )

so   1/3 is cancel with 3

answer will be ( 9-7x)