rozwiaz uklad rownan metoda podstawiania.:
{12-x+y/2=0,5y + 10,25
y-x=1
{12-x+y/2=0.5y+10,25 /*2
24-2x+y=y+20,5
24-2x+y=y+20.5
y=x+1
24-2x+x+1=x+1+20.5
24-x+1=x+21.5
-x-x=21,5-1-24
-2x=-3.5 /:(-2)
x= 1.75
Licze na naj:P
Jeśli masz pytania to pisz
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{12-x+y/2=0.5y+10,25 /*2
y-x=1
24-2x+y=y+20,5
y-x=1
24-2x+y=y+20,5
y-x=1
24-2x+y=y+20.5
y=x+1
24-2x+x+1=x+1+20.5
24-x+1=x+21.5
-x-x=21,5-1-24
-2x=-3.5 /:(-2)
x= 1.75
Licze na naj:P
Jeśli masz pytania to pisz