500×9×c=45000
4500с=45000
с=10
9410-220-a=232
9190-а=232
-а=232-9190
-а=-8958
а=8958
X=5,7
0.3752*5,7+0.6248*5.7-0.1=2.13864+3.56136-0,1=5.7-0.1=5.6
х=0.1
0.3752*0.1+0.6248*0.1-0.1=0.03752+0.06248-0.1=0.1-0.1=0
х=10
0.3752*10+0.6248*10-0.1=3.752+6.248-0.1=10-0.1=9.9
2,4(d+1) - 0,6 (4d- 3)= 2,4d + 2,4 - 2,4 d +1,8= 2,4+1,8 = 4, 2