Rozwiąż układ równań
|5/2x+1/2y=17/2 /:2
|1/3x-5/3y=19/3 /:3
|5x+y=17 /*5
|x-5y=19
|25x+5y=85
25x+x+5y-5y=85+19
26x=104 /:26
x=4
4-5y=19
-5y=19-4
-5y=15 /:(-5)
y=-3
5/2x+1/2y=17/2 /*2
1/3x-5/3y=19/3 /*3
5x+y=17 /*5
x-5y=19
25x+5y=85
5*4+y=17
20+y=17
y=17-20
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|5/2x+1/2y=17/2 /:2
|1/3x-5/3y=19/3 /:3
|5x+y=17 /*5
|x-5y=19
|25x+5y=85
|x-5y=19
25x+x+5y-5y=85+19
26x=104 /:26
x=4
4-5y=19
-5y=19-4
-5y=15 /:(-5)
y=-3
5/2x+1/2y=17/2 /*2
1/3x-5/3y=19/3 /*3
5x+y=17 /*5
x-5y=19
25x+5y=85
x-5y=19
26x=104 /:26
x=4
5*4+y=17
20+y=17
y=17-20
x=4
y=-3