Решите уравнение и выполните проверку: (х-87)-27=36 и 87-(41+у)=22
(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
A)(x-87)-27=36. b)87-(41+y)=22 x-87=36+27. 41+y=87-22 x-87=63. 41+y=65 x=63+87. y=65-41 x=150. y=24 --------------------- ---------------------- (150-87)-27=36. 87-(41+24)=22 36=36. 22=22