Rozwiąż układy równań metodą podstawiania:
a)
Proszę o rozpisanie;)
3m + n=9
2m-5n=-11
n=9-3m
2m - 5(9-3m) = -11
2m - 45 +15m = -11
17m = 34
m = 2
n=9-3*2=3
n = 3
Poprawione.
3m+n=92m-5n=-11n=9-3m2m-5(9-3m)=-11n=9-3m
2m-45+15m=-11
17m=-11+45n=9-3m
17m=34 /:17n=9-3mm=2n=9-3*2m=2n=9-6m=2n=3m=2
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3m + n=9
2m-5n=-11
n=9-3m
2m - 5(9-3m) = -11
2m - 45 +15m = -11
17m = 34
m = 2
n=9-3*2=3
n = 3
Poprawione.
3m+n=9
2m-5n=-11
n=9-3m
2m-5(9-3m)=-11
n=9-3m
2m-45+15m=-11
n=9-3m
17m=-11+45
n=9-3m
17m=34 /:17
n=9-3m
m=2
n=9-3*2
m=2
n=9-6
m=2
n=3
m=2