Номер 46 SOS SOS. SOS

Question

Номер 46 SOS SOS. SOS

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Answer 1

X•9=130+140
9x=270|:9
x=30

x:8=200-120
8x=80|•8
x=640

164-x=720:9
164-x=80
-x=80-164
-x=-84
x=84

Answer 2

Х*9=270
х=270/9=30
х/8=80
х=80*8=640
164-х=80
х=164-80=84