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Alexis D.
Sophomore Studying to Become a Biomedical Engineer
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Pre-Algebra
TutorMe
Question:

What does 9-7x2 equals?

Alexis D.

To solve this expression you have to use order of operations or PEMDAS. PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. Using PEMDAS, you have to multiply first because there is no Parenthesis or Exponents. Therefore, 7x2=14. Next, you subtract because there is no Division or Addition to be done. Therefore, 9-14= -5. Ans: -5

Basic Math
TutorMe
Question:

What does 3 + 2 equals?

Alexis D.

First, hold up 3 fingers on your right hand. Then, hold up 2 fingers on your left hand. Count the total amount of fingers you have up. You should have 5 fingers up, therefore, the answer is 5. Ans: 5

Algebra
TutorMe
Question:

If 2x+6= 28, what does x equals?

Alexis D.

First, you isolate the 2x by minusing 6 from both sides, 2x+6=28 -6 -6 _______ 2x=22 Then you isolate the x by dividing 2 from both sides, (2x/2)= (22/2) ___________ Ans: x=11 To check your answer plug in the 11 where the x is. 2(11)= 22 22+6=28

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