Question

Afla numerele necunoscute: a:b=3rest5si a-b=2;și a:b=8rest3si a+b=9. Va rog ajutatima

Answer 1

a:b=3 rest 5 =>a=3b+5
a-b=2 =>3b+5-b=2 =>2b=(-3) =>b=(-3/2)
a-(-3/2)=2 <=>a+3/2=2 =>2a+3=4 =>2a=1 =>a=1/2

a:b=8 rest 3 =>a=8b+3
a+b=9 =>8b+3+b=9 =>9b=6 =>b=6/9=2/3
a+2/3=9 <=>3a+2=27 =>3a=25 =>a=25/3