Question

9. Simplify these expressions and find
their values if x = 3 : 3x - 5 + x + 9 example
10
8
6​

Answer 1

3 ( 3 ) - 5 + 3 + 9  { when x = 3 }

9 - 5 + 3 + 9

4 + 3 + 9

7 + 9

= 16

Answer 2

Answer:

13

=3x-5+x+9

=3(3)-5+3+9

=6-5+3+9

=1+3+9

=13