P(x) = 5x + 2. If P(b) = 6, then b= ?

Question

P(x) = 5x + 2. If P(b) = 6, then b= ?

Answer 1

P(b) means to evaluate P(x) when x=b.

 

P(b) = 6   means what value of b makes P(b) equal to 6?

 

 

P(b) = 5b + 2

 

6 = 5b + 2

 

 

Solve for b from this equation.  I leave this part to you.