10- 2,4Х=3,16 /// (У+26,1)*2,3=70,84 ///( z-1,2 ) : 0,6=21,1
10-3,16=2,4Х /// (У+26,1) = 70,84: 2,3 /// z - 1.2 = 21.1*0.6
2,4Х=10-3,16 /// У= 30,8-26,1 /// Z - 1.2 = 12.66
2,4Х=6,84 /// У = 4,7 /// Z = 12.66+ 1.2=13,86
Х= 6,84/2,4=2,85
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