при каком k 0,5k - 4 равно удвоенному значению 0,3k +2
4 3
(0.5k-4)/4 = 2(0.3k+2)/3(0.5k-4)/4 = (0.6k+4)/31.5k-12 = 2.4k + 160.9k=-28k = -28/0.9=-280/9
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(0.5k-4)/4 = 2(0.3k+2)/3
(0.5k-4)/4 = (0.6k+4)/3
1.5k-12 = 2.4k + 16
0.9k=-28
k = -28/0.9=-280/9