Решить уравнение 5|a|=|a+1|+|a+2|

5 * |a| = |a + 1| + |a + 2|; { 5 * a = |a + 1| + |a + 2|;- 5 * a = |a + 1| + |a + 2|;{ 5 * a = a + 1 + |a + 2|;5 * a = - a - 1 + |a + 2|;- 5 * a = a + 1 + |a + 2|;- 5 * a = - a - 1 + |a + 2|;{ 5 * a = a + 1 + a + 2;5 * a = a + 1 - a - 2;5 * a = - a - 1 + a + 2; 5 * a = - a - 1 - a - 2;- 5 * a = a + 1 + a + 2;- 5 * a = a + 1 - a - 2;- 5 * a = - a - 1 + a + 2; - 5 * a = - a - 1 - a - 2;{ 5 * a = 2 * a + 3;5 * a = - 1;5 * a = 1; 5 * a = - 2 * a - 3;- 5 * a = 2 * a + 3;- 5 * a = - 1;- 5 * a = 1; - 5 * a = - 2 * a - 3; { a = 1;a = + - 1/5;a = + - 3/7.