what is the answer to 3a-2a-9 when a=1/2 and b=7

Answer 1

Given that a = 1/2 and b = 7, we can solve this problem just by substituting the given values for the variables in the expression.

=3a-2a-9

=3(1/2) - 2(1/2) - 9

=3/2 - 2/2 - 9

=1/2 - 9

= 1/2 - 18/2

= -17/2 or -8.5