Rozwiązaniem układu równań
[2x=10
[y=x+4
2x= 10 /:2
y-x = 4
x= 5
y -5 = 4
y= 4+5
y= 9
[2x=10/:2[y=x+4[x=5[y=5+4[x=5[y=9
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2x= 10 /:2
y-x = 4
x= 5
y -5 = 4
x= 5
y= 4+5
y= 9
[2x=10/:2
[y=x+4
[x=5
[y=5+4
[x=5
[y=9