4х+5 = 87:34х = 29 - 5х = 24 :4 х = 6
3х - 16 = 85 : 173х = 5 + 16х = 21 : 3х = 7
6х - 13 = 153 : 96х = 17 + 13х = 30 : 6х = 5
4х+5 = 87:3
4х = 29 - 5
х = 24 :4
х = 6
3х - 16 = 85 : 17
3х = 5 + 16
х = 21 : 3
х = 7
6х - 13 = 153 : 9
6х = 17 + 13
х = 30 : 6
х = 5