Leslie C. answered • 04/24/19
Tutor
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Science, Math, and Nursing Tutor, Masters in Education, RN, BSN
You will need to use PEMDAS to answer this question. According to PEMDAS, it should be like this:
7+(3x7)-(3x7)+3-3 =
7 + (21) - (21) +3 - 3 =
Essentially the 3s and 21s cancel each other out, making the answer 7.
