Question

find the root of 3(y-1) =21​

Answer 1

Answer:

$\sqrt{3(y - 1)}$

=21

Step-by-step explanation:

3(y-1)=21^2

y-1=441/3

y-1=147

y=148

Answer 2

(3y-3)=21

3y=21+3

3y=24

y=24/3

y=8