37/18-5/18=x-21/18. help,pleace

Răspuns :

37/18-5/18 = X-21/18
32/18 = X-21/18 |×18
32 = 18X-21
18X = 32+21
18X = 53
X = 53/18
V. 32/18 = 53/18-21/18
32/18 = 32/18