Answer:
9
Step-by-step explanation:
To begin, change the x to a 3. Once you do that the expression should be 2*3+3. Once you have the proper expression, work it out. 2*3 is 6, and 6+3 is 9! I'll post an example along with my calculator work below.
Example:
12x + 17 for x = 7
Rework the problem: 12*7+17
Follow PEMDAS. 12*7 = 84. 84+17 = 101
If you need more help or explanation, follow up in the comments. :P
