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Catalindidiu5
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Va rog ajutorrrr!!! dau coroanaaa​

Va Rog Ajutorrrr Dau Coroanaaa class=

Răspuns :

Ioana110721
a. 2a+2b+2c= 2x7=14
b. 10a+10b+10c= 10x7=70
c. 13a+13b+13c+21=13x7+21= 91+21= 112
d. 8a+8b+8c-12=8x7-12=56-12=44
e. 400-(5a+5b+5c)=400-5x7=400-35=365
f. 6a+6b+6c+100= 6x7+100=42+100=142

Sper ca e corect și ca te-am ajutat!
Dianageorgiana794

Răspuns:

a+b+c=7

2a+2b+2c=2(a+b+c)=2·7=14

10a+10b+10c=10·7=70

13a+13b+13c+21=13(a+b+c)+21=13·7+21=112

8a+8b+8c-12=8(a+b+c)-12=8·7-12=44

400-5(a+b+c)=400-5·7=400-35=365

6(a+b+c)+100=6·7+100=142

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