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½x-3+1=¾x+4½-5
½x-2=¾x-½
²/₄x-¾x=-½+(-2)
-¼x=-2½
x=10
2. 1,5( y+2)+2y =5/2 (2y+1) -5
1,5y+3+2y=5y+2½-5
3,5y+3=5y-2½
3,5y-5y=-2½-3
-1,5y=-5½
y=3⅔
3.ten przyklad jest chyba zle zapisany
4. 1/3 (z+6) = 4
⅓z+2=4
⅓z=2
z=6
5.3/4 (x-0,2) = 3 1/2x
¾x-0,15=3½x
-2,75x=0,15
x=0,55
½x-3+1=¾x+4,5-5
½x-¾x=4,5-5+3-1
-¼x=1,5||:(-¼)
x= -6
2)1,5(y+2)+2y=⁵/₂(2y+1)-5
1,5y+3+2y=2,5*(2y+1)-5
1,5y+3+2y=5y+2,5-5
1,5y+2y-5y=2,5-5-3
-1,5y=-5,5||:(-1,5)
y =3⅔
3) ¾x-0,4x=8*½x
0,75x-0,4x=4x
0,75x-0,4x-4x=0
-3,75x=0
4) ⅓(z+6)=4
⅓ z +2=4
⅓z=4-2
⅓z=2||:⅓
z=6
5) ¾(x-0,2)=3*½x
0,75x-0,15=1,5x
0,75x-1,75x=0,15
-1x=0,15 ||;(-1)
x=-0,15
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