Błagam o pomoc matematyka z plusam 1 klasa gimnazjum 9/199 i 10/199

10/199  1)1/2x- 4 = x-6 /* 2 x - 8 = 2x - 12 x - 2x = -12 + 8 -x = -4 /*(-1) x = 4 2) x-5 = 1/3 x +1 x - 1/3 = 1 + 5 2/3x = 6 /* 3/2 x = 9 3) x/4- 1/4 = 2/*4 x - 1 = 8 x = 8 + 1 x = 9 4) x/5 - 3 = x+1/5 /*5 x - 15 = 5x + 1 x - 5x = 1 + 15 - 4x = 16 /:(-4) x = -4 5) 5/6 (x -1 ) = 4 5/6x - 5/6 = 4 /* 6 5x - 5 = 24 5x = 24 + 5 5x = 29 /:5 x = 29/5 6) -1/2( -x - 6 ) = - x 1/2 x + 3 = - x /*2 x + 6 = -2x x + 2x = - 6 3x = -6 /: 3 x = -2