1) {4x+9>-15 {2-x≤54x+9 >-154x>-15-94x>-24x>-62-x≤5-x≤5-2-x≤3x≥ -3 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\------- -6 ------------- -3 -------------- \\\\\\\\\\\\\\\\\\\\\\x≥ -3Ответ: х≥ -32) {2x+3≥x-1 {5x-22≤x+22x+3≥x-12x-x≥ -1-3x≥ -45x-22≤x+25x-x≤2+224x≤24x≤6 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\------- -4 --------------- 6 -------------\\\\\\\\\\\\\\\\\\\\\\\\\\\-4≤x≤6Ответ: -4≤х≤63) {1-0.5x<4-x {9-2.8x>6-1.3x1-0.5x<4-x-0.5x+x<4-10.5x<3x<69-2.8x>6-1.3x-2.8x+1.3x>6-9-1.5x>-3x<2\\\\\\\\\\\\\\\\\\\\\\\\\------- 2 -------------- 6 --------------\\\\\\\\x<2Ответ: х<2