Question

a+b+c=360
a=2xb
un nr este de trei ori m.mare decat celalalt

Answer 1

$a+b+c=360 \\ a=2b \\ c=3b \\ 2b+b+3b=360 \\ 6b=360 \\ b=360:6 \\ b=60 \\ a=2b \\ a=2*60 \\ a=120 \\ c=3b \\ c=3*60 \\ c=180$