3 (x-4) + 17 = 2 (3+x)-4 1/2 ( x + 7 ) + 13 = 1/4 ( x+2 ) - 17 x + 4 / 7 +8 =2x-7 / 2 | 7 - X | = 3x +2 3 - |x+4| = 9

1) 3 (x-4) + 17 = 2;3 * x - 12 + 17 = 2; 3 * x + 5 = 2; 3 * x = 2 - 5; 3 * x = - 3; x = - 3 / 3; x = - 1 ;2) (3+x)-4 = 1/2; 3 + x - 4 = 1 / 2;x - 1 = 1 / 2; x = 1 / 2 + 1; x = 3 / 2; x = 1.5 ; 3) ( x + 7 ) + 13 = 1/4 ;x + 7 + 13 = 1 / 4; x + 20 = 1 / 4; x = 1 / 4 - 20; x = - 19.75; 4) ( x+2 ) - 17 x + 4 / 7 +8 =2x-7 / 2;x + 2 + 17 * x + 4 / 7 + 8 = 2 * x - 7 / 2; 18 * x + 10 целых 4 / 7 = 2 * х - 7 / 2;18 * x - 2 * x = - 7 / 2 - 10 целых 4 / 7; 16 * x = - 7 / 2 - 74 / 7; 16 * x = ( - 49 - 148) / 14;16 * x = - 197 / 14 ; x = - 197 / 224;5) | 7 - X | = 3x +2; 1. 7 - x = 3 * x + 2; 7 - 2 = 4 * x ; x = 5 / 4;2. 7 - x = - 3 * x - 2;- 2 * x = 9;x = - 9 / 2;6) 3 - |x+4| = 9 ;1. x + 4 = - 6;x = - 10;2. x + 4 = 6;x = 2;7) |x - 2|= -4;1. x - 2 = - 4; x = - 2;2. x - 2 = 4;x = 6.