0.6 - 0.3b - 1.6b + 6,4 = 0;
-1.9b+7| при b = -2.4
-1.9 * (-2.4) +7
4.56 +7 =11.56
0.6-0.3b-1.6b+6.4=7-1.9b=7-1.9*(-2.4)=7+4.56=11.56
0.6 - 0.3b - 1.6b + 6,4 = 0;
-1.9b+7| при b = -2.4
-1.9 * (-2.4) +7
4.56 +7 =11.56
0.6-0.3b-1.6b+6.4=7-1.9b=7-1.9*(-2.4)=7+4.56=11.56