(51,32+Х)•0,12=7217,28:(56-Х)=36

Question

(51,32+Х)•0,12=72
17,28:(56-Х)=36

Answer 1

(51,32+х)·0,12=72
51,32+х=600
х=600-51,32
х=548,68
Проверка: (51,32+548,68)·0,12=600·0,12=72
17,28:(56-х)=36
17,28=36(56-х)
17,28=2016-36х
36х=2016-17,28
36х=1998,72
х=55,52
Проверка: 17,28:(56-55,52)=17,28:0,48=36