Question

tim x 35,5:x -5,5 : x =15

Answer 1

35.5:x-5.5:x=15

(35.5-5.5):x=15

30:x=15

x=30:15

x=2

Answer 2

35,5:x -5,5 : x =15

<=> (35,5 -5,5) : x = 15

<=> 30:x = 15

<=> x = 30 : 15 

<=> x = 2