2
answers
0
watching
38
views
28 Nov 2019
a - 0.2b - 0.3c = 320
0.1a + b - 0.4c = 90
-0.2a - 0.5b + c = 150
a - 0.2b - 0.3c = 320
0.1a + b - 0.4c = 90
-0.2a - 0.5b + c = 150
2
answers
0
watching
38
views
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