rozwiaz algebraicznie i gaficznie uklad rownan + sprawdzenie
y=1/3x+3
y=7-x
7-x=1/3x+3
4/3x=-4
x=3
y=7-3
y=4
spr:
4=1/3*3+3
4+3=7
4=4
L=P
7=7
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y=1/3x+3
y=7-x
7-x=1/3x+3
y=7-x
4/3x=-4
y=7-x
x=3
y=7-3
x=3
y=4
spr:
4=1/3*3+3
4+3=7
4=4
L=P
7=7
L=P