1) 4х + 5 = 87 : 3;4х + 5 = 29;4х = 29 - 5;4х = 24;х = 24 : 4;х = 6.Ответ: х = 6.2) 3х - 16 = 85 : 17;3х - 16 = 5;3х = 5 + 16;3х = 21;х = 21 : 3;х = 7.Ответ: х = 7.3) 6х - 13 = 153 : 9;6х - 13 = 17;6х = 17 + 13;6х = 30;х = 30 : 6;х = 5.Ответ: х = 5.4) 8х + 51 = 201: 3;8х + 51 = 67;8х = 67 - 51;8х = 16;х = 16 : 8;х = 2.Ответ: х = 2.5) 46х - 57 = 27 * 3;46х - 57 = 81;46х = 81 + 57;46х = 138;х = 138 : 46;х = 3.Ответ: х = 3.6) 19х + 62 = 13 * 15;19х + 62 = 195;19х = 195 - 62;19х = 133;х = 133 : 19;х = 7.Ответ: х = 7.