W(x)=9x+8, evaluate w(5)

Question

I need help trying to solve this algebra 

Answer 1

you can just plug in x = 5 into the expression and then simplify!

W(5) = 9(5) + 8

=45 + 8

=53

Answer 2

W(x) = 9x + 8

 

To evaluate W(5), just set x equal to 5:

 

W(5) = 9·5 + 8 = ___?