Răspuns :
Răspuns:
x/y=1/6=>y=6x
2x+3y=100
2x+3·6x=100
2x+18x=100
20x=100=>x=100:20=>x=5
y=6·5=>y=30
verificare:
2·5+3·30=10+90=100
Răspuns:
x/y=1/6=>y=6x
2x+3x=100
2x+3•6x=100
2x+18x=100
20x=100=>x=100:20=>x=>5
y=6•5=>y=30
VERIFICARE
2•5+3•30=10+90=100