How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Ryan Your Own Question

Ryan, Engineer
Category: Math Homework
Satisfied Customers: 8836
Experience:  B.S. in Civil Engineering
Type Your Math Homework Question Here...
Ryan is online now
A new question is answered every 9 seconds


Customer Question

Submitted: 25 days ago.
Category: Math Homework
Expert:  Ryan replied 25 days ago.


Thank you for using the site. I'll be happy to help you with this problem.

Since multiplication has a higher precedence than either addition or subtraction, you must first perform the "2 x 2" operation, which gives you:

= 2 + 2 - 4

Then, since addition and subtraction have equal precedence, you do those operations going from left to right, which gives:

= 4 - 4

and then

= 0

Thus, 2 + 2 - 2 x 2 = 0.

Please feel free to ask if you have any additional questions about this problem.