Problem z zadaniem
Rozwiaz uklad rownan metoda podstawiania
[6x+y=6
[4x+3y=11
[3x+9y=12
[5x+15y=2
1.
y=6-6x
4x+3(6-6x)=11
4x+18-18x=11
-14x=-7
x=0,5
y=6-6*0,5
y=6-3
y=3
2.
[3x+9y=12/3
x=4-3y
5(4-3y)+15y=2
20-15y+15y=2
0≠-18
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1.
[6x+y=6
[4x+3y=11
y=6-6x
4x+3(6-6x)=11
4x+18-18x=11
-14x=-7
x=0,5
y=6-6*0,5
y=6-3
y=3
2.
[3x+9y=12/3
[5x+15y=2
x=4-3y
5(4-3y)+15y=2
20-15y+15y=2
0≠-18