(168-Х)*23=1288 (347-Х)16=864

(168-x)•23=1288 3864-23x=1288 23x=-3864+1288 23x=−2 576 x=-2576:23 x=-112 (347-x)•16=864 5552-16x=864 16x=-5552+864 16x=−4688 x=−4688:16 x=-293