Rozwiąż równania : a) 1-6/7 x = 4/7 b) 6 (1/4 x - 2 ) = 18 c) x/6 - 1/6 = 1 d)3/4 (2-3x) = -6 e)1/5 ( x - 3 ) = 9 - x f) 0,6 + x / 2 = x + 1

a) 1-6/7 x = 4/7 -6/7x=3/7 /:-6/7 x=-0,5 b) 6 (1/4 x - 2 ) = 18 6/4x-12=18 6/4x= 30 /:6/4 x=20 c) x/6 - 1/6 = 1 x/6= 7/6 x=7 d)3/4 (2-3x) = -6 6/4 -9/4x=-6 /*4 6-9x= -24 -9x=-24-6 -9x=-30 /-9 x=30/9 x=3 1/3 e)1/5 ( x - 3 ) = 9 - x 1/5x-3/5=9-x 1/5x+x=9-3/5 1 1/5x =8 2/5x 6/5x=42/5 x=7 f) 0,6 + x / 2 = x + 1 x/2-x=1-0,6 -x/2=0,4 x=-0,8

a) 1-6/7 x = 4/7 /*7 7-6x=4 -6x=-3 x= 3/6= 1/2 b) 6 (1/4 x - 2 ) = 18 6/4x-12=18 6/4x=30 /*4 6x=120 x=20 c) x/6 - 1/6 = 1 /*6 x-1=6 x=7 d)3/4 (2-3x) = -6 /*4 3(2-3x)=-24 6-9x=-24 -9x=-30 x=30/9=10/3 e)1/5 ( x - 3 ) = 9 - x /*5 x-3=45-5x -3=45-6x 6x=48 x=8 f) 0,6 + x / 2 = x + 1 /*2 1,2+x=2x+2 /*10 12 +10x=20x+20 -10x=8 x=-8/10=-4/5