9/177 a) 1/3 x -2 = x+2/+2 1/3x= x+4 /-x - 2/3x =4/:(-2/3) x= -12/2 x=-6 b) 1 - 6/7x=4/7 /-1 - 6/7x= -3/7 /:(-6/7) x= 1/2 c) 6(1/4x -2)=18 1 1/2x --12 =18 /+12 3/2x = 30/ :3/2 x = 20/1 x= 20 d) x/6 - 1/6 = 1 /+1/6 1/6x = 7/6 /:1/6 x= 7/1 x=7 e) -2( 2x - 1) =x/3 -4x +2 = 1/3 /-2 -4x = 1/3x -2 / -1/3x -4 1/3 = -2 /: (-13/3) x= 6/13 f) 2/5 (3 - x) = -2 6/5- 2/5x = -2 /-6/5 -2/5x= -2 6/5 -2/5x= -16/5 /: (-2/5) x= 8/1 x= 8 g) 3/4 (2 - 3x) = -6 6/4 - 9/4x= -6/ -6/4 - 9/4x = -6 6/4 - 9/4x= - 7 2/4 - 9/4x= - 30/4 /: (-9/4) x= 30/9 x= 3 1/3 h) 1/5x (x - 3) = 9 -x 1/5x - 3/5 = 9 -x/ +3/5 1/5x = 9 3/5 - x /+x 1 1/5x = 9 3/5 6/5 x= 48/5 /:6/5 x= 8/1 x= 8 i) 0,6 +x /2 = x + 1 /*2 0,6+x = 2x + 2 /- 0,6 x= 2x +1,4 /-2x -x= 1,4 /:(-1) x= - 1,4 zad 10/177 a) 4x+ 1= 3x+5 /-1 4x= 3x +4 /-3x x= 4 nie umiem reszte rozwiazac
