If b is given by b(x) = 2x-6 then b(4) is equal =?

The answer for your question is two

b (4) = 2(4) - 6 

b (4) = 8 - 6

= 2 

if b is given by b(x)=2x-6 then b(4) is equal to 2

answer of your  question 2*4-6=2

we know that,

b(x) = 2x-6, then

b(4) = 2(4)-6

b(4) = 8-6

b(4) =2 answer

two...........................................................................

b(4)=2*4-6=2 it's the result 

the right answer will be two for b(x)