Question

sa se afle x,y,z stiind ca:x:y=3 rest 6;y:z=3 rest6;x+y+z=1330

Answer 1

x:y=3r6⇒x=3y+6
y:z=3r6⇒y=3z+6
x+y+z=1330
x=3y+6⇒x=3(3z+6)+6⇒x=9z+18+6⇒x=9z+24
9z+24+3z+6+z=1330
13z+30=1330
13z=1330-30
13z=1300
z=1300:13
z=100
x=9x100+24
x=900+24
x=924
y=3x100+6
y=300+6
y=306
V:924+306+100=1330(x+y+z)