Помогите пожалуйстааа | |x+1| - |x-3| | = |x|

| |x+1| - |x-3| | = |x|;{ |x+1| - |x-3| = |x|; - (|x+1| - |x-3|)= |x|;{ |x+1| - |x-3| = |x|; - |x+1| + |x-3|= |x|;{ |x+1| - |x-3| = x; |x+1| - |x-3| = - x; - |x+1| + |x-3|= x; - |x+1| + |x-3|= - x;{ |x+1| = |x-3| + x; |x+1| = |x-3| - x; |x-3|= x +|x+1| ; |x-3|= - x + |x+1|;{ x+1= |x-3| + x;- x - 1 = |x-3| + x; x+1 = |x-3| - x;- x - 1 = |x-3| - x; x - 3= x +|x+1| ; - x + 3= x +|x+1| ; x-3= - x + |x+1|; - x + 3= - x + |x+1|;{ 1= |x-3|;- 2x - 1 = |x-3|; 2x+1 = |x-3|; - 1 = |x-3|; - 3= |x+1| ; - 2x + 3= |x+1| ; 2x-3= |x+1|; 3= |x+1|;{ 1= x-3;x - 3 = - 1;- 2x - 1 = x-3;- 2x - 1 = 3 - x; 2x+1 = x-3; 2x+1 = 3 - x; - 1 = x-3;x - 3 = 1; - 3= x+1 ;x + 1 = 3; - 2x + 3= x+1 ; - 2x + 3= - x - 1 ; 2x-3= x+1; 2x-3= - x - 1; 3= |x+1|; - 3= x+1;{ x = - 2;x = 2;x = 2 / 3 ;x = - 2 / 3;x = - 4;x = 4.