Rozwiąż równanie a) 2(x-½)-x+3=3 b) 0=3-(2x+1) c) 0=(x-1)-(3x-5) d)(-½x+1)+3x/2 =3 e)3(1-x)-(1-2x)=9 f) 0,5(2-4x)=3-x g)12y-(y+5)=10y-1 h)2(u-5)+15=3(u-4)+10 i)-3(y/3+1)-2=4(1-y) j)2(3a-2)-6=4,5(2a-1)+½ Pilne na jutro !!!!!!!!!!!!!!!!!!!!!

a) 2(x-½)-x+3=3 2x-1-x+3=3 x=3-3+1 x=1 b) 0=3-(2x+1) 0=3-2x-1 2x=3-1 2x=2/:2 x=1 c) 0=(x-1)-(3x-5) 0=x-1-3x+5 3x-x=-1+5 2x=4/:2 x=2 d)(-½x+1)+3x/2 =3 -1/2x+1+3x/2=3/*2 -x+2+3x=6 2x=6-2 2x=4/:2 x=2 e)3(1-x)-(1-2x)=9 3-3x-x+2x=9 -3x+2x=9-3+1 -x=7/:(-1) x=-7 f) 0,5(2-4x)=3-x 1-2x=3-x -2x+x=3-1 -x=2/:(-1) x=-2 g)12y-(y+5)=10y-1 12y-y-5=10y-1 12y-y-10y=5-1 y=4 h)2(u-5)+15=3(u-4)+10 2u-10+15=3u-12+10 2u-3u=10-15-12+10 -u=-7/:(-1) u=7 i)-3(y/3+1)-2=4(1-y) -3y/3-3-2=4-4y/*3 -3y-9-6=12-12y -3y+12y=9+6+12 9y=27/:9 y=3 j)2(3a-2)-6=4,5(2a-1)+½ 6a-4-6=8a-4,5+1/2 6a-8a=4+6-4,5+0,5 -2a=6/:(-2) a= -3