a) 1-6/7x=4/7 /*7 7-6x=4 -6x=-3 x=2 b) x/6-1/6=1 /*6 x-1=6 x=7 c) 2/5(3-x)=-2 /*5 2(3-x)=-10 6-2x=-10 -2x=-16 x=8 d)3/4(2-3x)=-6 /*4 3(2-3x)=-24 6-9x=-24 -9x=-30 x=3⅓ e) 1/5(x-3)=9-x /*5 x-3=9-x 2x=12 x=6
a) 1-6/7x=4/7 -6/7x=4/7-1 -6/7x=-3/7 x=-3/7:-6/7 x=-3/7*-7/6 x=2 b) x/6-1/6=1 *6 x-1=6 x=6+1 x=7 c) 2/5(3-x)=-2 6/5-2/5x=-2 -2/5x=-2-6/5 -2/5x=-16/5 x=-16/5:-2/5 x=-16/5*-5/2 x=8 d)3/4(2-3x)=-6 3/2-9/4x=-6 -9/4x=-6-3/2 -9/4x=-15/2 x=-15/2:-9/4 x=-15/2*-4/9 x=30/9 x=3 i 3/9=3 i 1/3 e) 1/5(x-3)=9-x 1/5x-3/5+x=9 6/5x=9+3/5 6/5x=45/5+3/5 6/5x=48/5 x=48/5:6/5 x=48/5*5/6 x=8 pozdrawiam:)
