Question

simplify the expression if n=3 ,= a-1 3n -5 - n + 9 , (2) 3a+5-8a+1​

Answer 1

Answer:

(1) 3n-5-n+9

= 3(3)-5-3+9

= 9-5-3+9

= 4+6

= 10

Answer 2

3 A + 5 - 8 A + 1

= 3 (8) + 5 - 8 ( 8) + 1

= 24 + ( -3) (8) +1

= 24 + (-24) +1

= 1