Question

21x+45=17+14x

Answer 1

21x+45=17+14x

21x-14x=17-45

7x=-28

x=-28/7

x=-4

ответ:-4

 

 

 

 

 

 

 

 

 

 

 

 

Answer 2

21х+45=17+14х

21х-14х=17-45

7х=-28

х=-28:7

х=-4