Question

(700:х+20):4=40 как решить уровнение

Answer 1

700:х+20=40*4=160 700:х=160-20=140 х=700:140=5

Answer 2

(700/х+20)=40*4                         (700/х+20)=160                      700/х=160-20                     700/х=140                             х=700/140                        х=5      (700/5+20)/4=40