Respuesta :

Answer:

39

Step-by-step explanation:

Substitute a for 45

45-6=39

Answer:

Hi!

To begin solving this we know that a =45, so we can substitute 45 into the equation.

It looks like

45 - 6 = b

Now we must solve for b.

45 - 6 is 39

So b = 39


Hope this helps!


~CoCo