Rozwiąż układ równań
{ 5b+3 = 5a+3b{ 5a+7 = 4b-2
5b+3 = 5a+3b{ 5a+7 = 4b-2
5b-5a-3b=-3
5a-4b=-9
2b-5a=-3
-4b+5a=-9
2b-5a-4b+5a=-12
-2b=-12/:(-2)
b=6
2*6-5a=-3
12-5a=-3
-5a=-15/:(-5)
a=3
licze na naj ;d
5b+3=5a+3b
5a+7=4b-2 /*(-1)
5b+3-5a-3b=0
-5a-7+4b-2=0
+_________________
5b+3-5a-3b-5a-7+4b-2=0
6b-6=0
5*6+3=5a+3*6
5a=18-3-30
5a=-15
a=-5
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5b+3 = 5a+3b
{ 5a+7 = 4b-2
5b-5a-3b=-3
5a-4b=-9
2b-5a=-3
-4b+5a=-9
2b-5a-4b+5a=-12
-2b=-12/:(-2)
b=6
2b-5a=-3
2*6-5a=-3
12-5a=-3
-5a=-15/:(-5)
a=3
licze na naj ;d
5b+3=5a+3b
5a+7=4b-2 /*(-1)
5b+3-5a-3b=0
-5a-7+4b-2=0
+_________________
5b+3-5a-3b-5a-7+4b-2=0
6b-6=0
b=6
5*6+3=5a+3*6
5a=18-3-30
5a=-15
a=-5