Question

как решить уравнение (700:х+20):4=40

Answer 1

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

Answer 2

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