Question

va rog dau coroana si 30 puncte rezolvati prin ecuatii​

Answer 1

Răspuns:

3.

b=3a

b a=660

a|---|

b|---|---|---|

cele 2 sg fiind 660

daca 2 sg sunt 660=>660÷2=330 a

b=330×3=990

4.

a+b+c=1950

a=b÷2

c=a+10

a|---| }

b|---|---| } 1950

10

c|---|...l }

avem 3 sg

=>1 sg=1950÷3=650 a