Question

Va rog frumos si explicatie . ... dau coroana ​

Answer 1

Răspuns:

(100-x:76)*35+1=876    

(100-x:76)*35=876-1

(100-x:76)*35=875

(100-x:76)=875:35

100-x:76=25

100-x=25*76

100-x=1900

x=1900-100=1800

Explicație pas cu pas: e ordinea efectuari operatiilor

[(100+x):75-1]*35=875

[(100+x):74]=25

100+x=25*74

100+x=1850

x=1850-100=1750

Answer 2

Răspuns:

x=5700

Explicație pas cu pas:

(100-x:76)×35+1=876

(100-x:76)×35=876-1

(100-x:76)×35=875

100-x:76=875:35

100-x:76=25

-x:76=25-100

-x:76=-75

inmultim toata ecuatia cu -1 si obtinem ecuatia

x:76=75

x=75×76

x=5700

verificare:

(100-5700:76)×35+1=(100-75)×35+1=25×35+1=875+1=876