Question

determine by substitution , if part (1) 3 is the root of 3x= 9​

Answer 1

Step-by-step explanation:

3x= 9

3x-9=0

given that 3 is the root of above eq

f(x)= 3x-9

f(3)= 3(3)-9

0 = 9-9

0 = 0

Answer 2

Answer:

3x=9

x=3

x=9/3

x=3

I think Soo my answer will help you