Х - 59 = 76
х = 76 + 59
х = 135
==========
135 - 59 = 76
76=76
84 - х = 43
х = 84 - 43
х = 41
=========
84 - 41=43
43=43
х +48=95
х=95-48
х= 47
========
47 +48 = 95
95=95
34+х=82
х=82-34
х=48
=========
34 +48 =82
82=82
1-(5/9+1/4)<span>3-(1/2+1/7)
4-(2/5+7/18)
2-(11/19+15/38)
5-(2/5+5/14)
7-(19/40+1/3)</span>