1) 5 * [x] - 4 = [x];{ x = 5 * [x] - 4;- x = 5 * [x] - 4;{ x + 4 = 5 * [x];- x + 4 = 5 * [x];{ 5 * x = x + 4;- 5 * x = x + 4;5 * x = - x + 4;5 * x = x - 4;Известные значения переносим на одну сторону, а неизвестные на другую сторону. При переносе значений, их знаки меняются на противоположный знак. То есть получаем:{4 * x = 4;- 6 * x = 4;6 * x = 4;4 * x = - 4;{ x = 1;x = - 2/3;x = 2/3;x = - 1.2) [x] - 5 = 3 * [x];{3 * x = [x] - 5;- 3 * x = [x] - 5 ;{ 3 * x + 5 = [x];- 3 * x + 5 = [x];{ x = 3 * x + 5;- x = 3 * x + 5;x = - 3 * x + 5;- x = - 3 * x + 5;{- 2 * x = 5;- 4 * x = 5;2 * x = 5;4 * x = 5;{ x = - 5/2;x = 5/2;x = 5/4;x = - 5/4.3) [-x] + 6 = 2 * [- x];{ 2 * (- x) = [-x] + 6;- 2 * (- x) = [-x] + 6;{ - 2 * x = [-x] + 6;2 * x = [-x] + 6;{ - 2 * x - 6 = [-x];2 * x - 6 = [-x];{ - x = - 2 * x - 6;x = - 2 * x - 6;x = 2 * x - 6;- x = 2 * x - 6;{ x = - 6;x = - 2;x = 6;x = 2.