1.Rozwiąż równanie a) 2(x-1/2)- x +3 =3 b)o=3-(2x+1) c) 0=(x-1)-(3x-5) d)(-1/2x+1)+ 3x/2=3 e) 3(1-x)-(1-2x)=9 f) 0,5(2-4x) =3-x 2.Rozwiaz równanie a)12y-(y+5)=10y-1 b)2(u-5)+15=3(u-4)+10 c) -3(y/3+1)-2=4(1-y) d) 2(3a-2)-6=4,5(2a-1)+1/2

1. a) 2(x-1/2)- x +3 =3 2x-1-x+3=3 x=1 b)0=3-(2x+1) 0=3-2x-1 2=2x x=1 c)0=(x-1)-(3x-5) 0=x-1-3x+5 0=-2x+4 -2x=-4 x=2 d)(-1/2x+1)+ 3x/2=3 -1/2x+1+3x/2=9 /*2 -x+2+3x=18 2x=16 x=8 e)3(1-x)-(1-2x)=9 3-3x-1+2x=9 -x+2=9 x=-7 f)0,5(2-4x) =3-x 1/2(2-4x)=3-x 1-2x=3-x x=-2 2. a)12y-(y+5)=10y-1 12y-y-5=10y-1 y=4 b)2(u-5)+15=3(u-4)+10 2u-10+15=3u-12+10 2u+5=3u-2 -u=-7 u=7 c)-3(y/3+1)-2=4(1-y) -y-3-2=4-4y -y-5=4-4y 3y=9 y=9 d)2(3a-2)-6=4,5(2a-1)+1/2 6a-4-6=9a-4,5+0,5 6a-10=9a-4 -3a=6 a=-2

1: a) 2(x-1/2)-x+3=3 2x-1-x+3=3 2x-x=3-3+1 x=1 b) 0=3-(2x+1) 0=3-2x-1 2x=-1+3 2x=2 |:2 x=1 c) 0=(x-1)-(3x-5) 0= x-1-3x+5 -x+3x=5-1 2x=4 |:2 x=2 d) (-1/2x+1)+3/2x =3 -1/2x+1+3/2x=3 -1/2x+3/2x=3-1 x=2 e)3(1-x)-(1-2x)=9 3-3x-1+2x=9 -3x+2x=9-3+1 -x=7 x=-7 f) 0,5(2-4x) =3-x 1-2x=3-x -2x+x=3-1 -x=2 x=-2 2: a)12y-(y+5)=10y-1 12y-y-5=10y-1 12y-y-10y=-1+5 y=4 b)2(u-5)+15=3(u-4)+10 2u-10+15=3u-12+10 2u-3u=10-12-15+10 -u=-7 u=7 c) -3(y/3+1)-2=4(1-y) -y-3-2=4-4y -y+4y=4+2+3 3y=9 y=3 d)2(3a-2)-6=4,5(2a-1)+1/2 6a-4-6=9a-4,5+0,5 6a-9a=0,5-4,5+6+4 -3a=6 a=-2