What is the solution to this 2b+9 when b=3

15 :D

Step-by-step explanation:

Well, we know b = 3 so we can rewrite the expression to make it less confusing. So, we change b for 3, which is the same thing but number form:

2(3) + 9

Now we evaluate 2(3) which would be 2 x 3. 2 x 3 is 6, so we rewrite 2(3) as 6.

6 + 9

and finally, 6 + 9 is 15!

♡Hope this helps♡

21.4 i did it already for s1

step-by-step explanation:

the answer will be