Substitution and order of operations

 What operation is happening?

 $2x$ 

• Addition

• Subtraction

• Multiplication

• Division

• 9

• 14

• 27

• 5

• 51

• 626

• 26

• 101

• 693

• 2

• 592

• 7

• 274

• 56

• 13

• 148

• 25

• 121

• 30

• 2

What is the first operation in the following problem?
 $2x+5$  

•  $2+5$  

•  $2\times x$  

•  $x+5$  

• None of the above

• 61

• 43

• 51

• 33