Question

doy corona porfavor
a- (-5.8+15):(-5)+18:(2+5)-20
b- (-20:4-7):4+(5-3.2).(-4)-9
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Answer 1

Respuesta:

a- (-5.8+15):(-5)+18:(2+5)-20

(-40+15):(-5)+18:7-20

-25:(-5)+2,5-20

-5-17,5= -22,5

b- (-20:4-7):4+(5-3.2).(-4)-9

-5-7:4+(5-6).(-4)-9

-5-7:4-1.(-4)-9

-5-1,75+4-9

-6,75+4-9

-2,75-9

-7,75

no estoy segura