Negative numbers

Ahmed's teacher asks him to l: "start with +2, then multiply by -1, then subtract 3, then divide by -1, then add -6". What should Ahmed's answer be?

Correct answer:

a5 =  11

Step-by-step explanation:

a1=+2 a2=a1 (1)=2 (1)=2 a3=a23=(2)3=5 a4=a3/(1)=(5)/(1)=5 a5=a4+(6)=5+6=11

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