Question

15. Simplify the expression by substituting the value a=3 and b= -2

I) 7a – 4

3​

Answer 1

Answer:

=7a - 4

=7(3)-4

=21-4

=17

Answer 2

Answer:

7(3) - 4

21 - 4

21 - 4 = 17

hope the answer is right