Реши уравнения : × + 7 = 45 ; × - 7 = 38 ;45 - × = 7

Question

Реши уравнения : × + 7 = 45 ; × - 7 = 38 ;45 - × = 7

Comments

x+7=45x=45-7x=38x-7=38x=38+7x=4545-x=7-x=7-45-x=-38x=38

Answer 1

×+7=45,
45-7=38,
38+7=45.
Ответ:38

Answer 2

 × + 7 = 45; х=45-7; х=38

 × - 7 = 38; х=38+7; х=45

45 - × = 7; -х=7-45; х=38