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-5 = 2a + b
2= - 3a + b
-5=2a+b
2=-3a+b
-2a-b=5/3
3a-b=-2/2
-6a-3b=15
6a-2b=-4
-5b=13/:-5
b=2.6
2=-3a + 2,6
3a=2.6-2=0.6
3a=0.6/:3
a=0.2
b=2,6
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-5=2a+b
2=-3a+b
-2a-b=5/3
3a-b=-2/2
-6a-3b=15
6a-2b=-4
-5b=13/:-5
b=2.6
2=-3a + 2,6
3a=2.6-2=0.6
3a=0.6/:3
a=0.2
a=0.2
b=2,6