Question

3(x + 3) + 10

it is one of these answers .
A- 13x + 10
B- 3x + 19
C- 3x + 9
D- 3x + 16

Answer 1

3(x+3)+10 = 3x+9+10 = 3x+19
So the answer is B.

Answer 2

b-3x+19

Explanation:

you have to open the bracket so 3*x=3x

3*3=9

therefore;3x+9+10=3x+19