17487:(×+56)=87 помогите плиз

Question

17487:(×+56)=87 помогите плиз

Answer 1

17487:(x+56)=87
(х+56)*87=17487
87*х+56*87=17487
87х+4872=17487
87х=17487-4872
87х=12615
х=12615:87
х=145

Comments

17487:(х+56)=87
(х+56)*87=17487
87*х+56*87=17487
87х+4872=17487
87х=17487-4872
87х=12615
х=12615:87
х=145