Lenny D. answered • 04/26/19
Tutor
4.8
(563)
Former professor at Tufts University with decades on Wall Street
Remember My Dear Aunt Sally for order of operations. Multiply. then Divide Then Add. Then Subtract MDAS
so 1x1 = 1 and 1x1x1 = 1
So the expression becomes
1 - 1 + 1 - 1/1
1/1 = 1
so the expression simplifies to 1+ 1 - 1 -1 = 0
