Question

(x-87)-27=36 87-(41 Y)=22

Answer 1

(х-87)-27=36

х-87=36+27

х-87=63

х=63+87

х=150

проверка:

(150-87)-27=36

36=36

 

 

87-(41-у)=22

87-41+у=22

46+у=22

у=22-46

у= -24

проверка:

87-(41- (-24))=22

22=22