{y+1=12(5x-4)
{5x+y=3x+6 ,
{60x-y=49
{2x+y=6 ⇒ 60x+2x=49+6 , 62x=55 , x=55/62
2*(55/62) +y=6, y=6-55/31=186/31-55/31=131/31=4 3/31
{y+1=12(5x-4)
{5x+y=3x+6 ,
{60x-y=49
{2x+y=6 ⇒ 60x+2x=49+6 , 62x=55 , x=55/62
2*(55/62) +y=6, y=6-55/31=186/31-55/31=131/31=4 3/31