gabi0624
4/5(4,5x-6=-2(2/5x=1)+6+4,4x 4/5(45/10x+6)=-2(2/5x+1)+6+4,4x 18/5x-24/5=-4/5x-1+6+4,4x 18/5x+4/5x-4,4x=-1+6+24/5 22/5x-44/10x=9 i 4/5 22/5x-22/5x=9 i 4/5 0=9 i 4/5
2y+2/5(-1,2y-1)-18/25y=4(0,32-0,22) 2y+2/5(-12/10y-1)-18/25y=4(32/100y-22/100) 2y-12/25y-2/5-18/25y=32/25y-22/25 2y-12/25y-18/25y-32/25y=-22/25+2/5 2y-62/25y=-22/25+10/25 -37/25y=-12/25 obie strony podzielić przez(-37/25) y=12/37
4/5(4,5x-6)=-2(2/5x+1)+6+4,4x
3,6x - 4,8 = -0,8x - 2 + 6 + 4,4x
3,6x + 0,8x - 4,4x = -2 +6 + 4,8
0,8x = 8,8
x = 11
b)
2y+2/5(-1,2y-1)-18/25y=4(0,32y-0,22)
2y - 0,48y - 0,4 - 0,72y = 1,28y - 0,88
2y - 0,48y - 0,72y - 1,28 = - 0,88 + 0,4
- 0,48y = - 0,48
y = 1
c)
0,8-1/5(0,3y-1)=1/25(y+25)+0,02y
0,8 - 0,06y + 0,2 = 1,25y + 1 + 0,02y
- 0,06y - 1,25y - 0,02y = 1 - 0,8 - 0,2
-1,33y = 0
y = 0
4/5(45/10x+6)=-2(2/5x+1)+6+4,4x
18/5x-24/5=-4/5x-1+6+4,4x
18/5x+4/5x-4,4x=-1+6+24/5
22/5x-44/10x=9 i 4/5
22/5x-22/5x=9 i 4/5
0=9 i 4/5
2y+2/5(-1,2y-1)-18/25y=4(0,32-0,22)
2y+2/5(-12/10y-1)-18/25y=4(32/100y-22/100)
2y-12/25y-2/5-18/25y=32/25y-22/25
2y-12/25y-18/25y-32/25y=-22/25+2/5
2y-62/25y=-22/25+10/25
-37/25y=-12/25 obie strony podzielić przez(-37/25)
y=12/37
0,8-1/5(0,3y-1)=1/25(y+25)+0,02y
8/10-1/5(3/10y-1)=1/25(y+25)+2/100y
8/10-3/50y+1/5=1/25y+1+2/100y
3/50y-1/25y-2/100y=1-8/10-1/5
3/50y-2/50y-1/50y=1-4/5-1/5
0=0