Oblicz metodą podstawiania
Na jutro bym was prosił :))
1/2x-3/4y=0 I*2
2/3x+5/4y=9 I*12
x-6/4y=0
8x+15y=108
x=6/4y
8(6/4y)+15y=108
12y+15y =108
27y=108 I:27
y=4
x=6/4*4
x=6
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1/2x-3/4y=0 I*2
2/3x+5/4y=9 I*12
x-6/4y=0
8x+15y=108
x=6/4y
8(6/4y)+15y=108
x=6/4y
12y+15y =108
x=6/4y
27y=108 I:27
x=6/4y
y=4
x=6/4*4
y=4
x=6
y=4