Question

Calculaţi: a.) 9-5-(7-12)-{5-[6+(6-9)-3]+11}=
b. 4-3-{5+ [6-7-(3-6+9)+(2-7)]}=
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Answer 1

Explicație pas cu pas:

a.) 9-5-(7-12)-{5-[6+(6-9)-3]+11}=

4-5-[5-(6+3-3)+11]=

-1-(5-6+11)=

-1-10=-11

b. 4-3-{5+ [6-7-(3-6+9)+(2-7)]}=

1-[5+(6-7-6-5)]=

1-(5-12)=

1-(-7)=8