Answer:
29
Step-by-step explanation:
okay so we are going to substitute 10 where the x variable is in this problem
2x + 9
like this:
2(10) + 9
and then we do order of operations by multiplying 2 by 10 then adding 9:
2x + 9 =
2(10) + 9 =
20 + 9 =
29
