Question

A+B+C=35
B=4•A
C=B:2
aflati a,b si c

Answer 1

a+b+c=35
b=4a
c=b:2=>c=4a:2=2a

a+4a+2a=35
7a=35
a=35:7
a=5

b=4*a
b=4*5
b=20

c=b:2
c=20:2
c=10

PROBA:

a+b+c=5+20+10=35

Answer 2

A+B+C=35 <=> A+4A+2A=35 adica 7A =35 adica A =5 => B=4*5=20. si C=20/2=10