Sie robi juz :)
x-cena jabłek
y-cena sliwek
4x+3y=17|* (-3)
3x+4y=18|*4
-12x-9y=-51
12x+16y=72
7y=21
y=3
4x+3y=17
4x=17-9
4x=8
x=2
Licze na naj ;))
x-cena jablek
y-cena śliwek
4x+3y=17 / *3
3x+4y=18 /*(-4)
12x+9y=51
-12x-16y=-72
-7y=-21 /:(-7)
4x+3*3=17
4x=8 /:4
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Sie robi juz :)
x-cena jabłek
y-cena sliwek
4x+3y=17|* (-3)
3x+4y=18|*4
-12x-9y=-51
12x+16y=72
7y=21
y=3
4x+3y=17
y=3
4x=17-9
y=3
4x=8
y=3
x=2
y=3
Licze na naj ;))
x-cena jablek
y-cena śliwek
4x+3y=17 / *3
3x+4y=18 /*(-4)
12x+9y=51
-12x-16y=-72
-7y=-21 /:(-7)
y=3
4x+3*3=17
4x=17-9
4x=8 /:4
x=2
y=3