Rozwiąż układy równań metoda podstawiania .
5a = 3b - 25
b= 2a + 5
5a=3b-25
b=2a+5
5a=3(2a+5)-25
5a=6a+15-25/-6a
-a=-10//(-1)
a=10
b=2*10+5
b=25
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5a=3b-25
b=2a+5
b=2a+5
5a=3(2a+5)-25
b=2a+5
5a=6a+15-25/-6a
b=2a+5
-a=-10//(-1)
b=2a+5
a=10
a=10
b=2a+5
a=10
b=2*10+5
a=10
b=25