Question

Решите уравнение и выполните проверку: (х-87)-27=36 и 87-(41+у)=22

Answer 1

(х-87)-27=36
х-87=36+27
х-87=63
х=63+87
х=150
__________
(150-87)-27=63-27=36

87-(41+у)=22
41+у=87-22
41+у=65
у=65-41
у=24
___________
87-(41+24)=87-65=22