Question

B) Solve and verify your answer.
1) 3 (x - 1) = 9​

Answer 1

Answer:

3x-3=9

3x=12

x=4

.....

Answer 2

Answer:

solution :

3( x - 1 ) = 9

3x - 3 = 9

3x = 9 + 3

x = 12/3

x = 4

verification :

3 ( x - 1 ) = 9

3 ( 4 - 1 ) = 9

12 - 3 = 9

9 = 9

hope it helps