Question

решите уравнение
15+х=55 60-у=45
х-22=42 у×=12

28+(45+х)=100
(у-25)+18=40
(70-х)-35=12

Answer 1

15+x=55
x=55-15
x=40
15+40= 55

Answer 2

60-y=45

Answer 3

60-y=45 y=60-45 y=15. x-22=42 x=42+22 x=64. xy=12 x=3,4,2,6 y=4,3,6,2, 28+(45+x)=100 x=73+x=100 x=100-73 x=27. (y-25)+18=40 y-25+18=40 y-7=40 y=40+7 y=47 (70-x)-35=12 70-x-35=12 35-x=12 x=35-12 x=23