1.nilai x yang memenuhi persamaan 3(3x+2/3)=5(2x-1/4 adalah 2.nilai x yang memenuhi persamaan 3(2x+1/3)=4(3x-1/2) adalah 3.nilai p yang memenuhi 5(2p+1/3)=3(4p-1/5) adalah 4.nilai x yang memenuhi 2x -1=x-1 adalah
FeliciaHennita
1) 3(3x+2/3)=5(2x-1/4) 9x+2 =10x-5/4 ---------------------------------- x4 36 x+8 =40x-5 13 =4 x x = 13/4
2) 3(2x+1/3)=4(3x-1/2) 6x+1 =12x-2 3 = 6x x = 1/2
3) 5(2p+1/3)=3(4p-1/5) 10 p+ 5/3 = 12p-3/5 ----------------------------------- x 15 150p+ 25 = 180 p-9 34 = 30 p p = 17/15
4) 2x -1=x-1 x=0
3 votes Thanks 7
citranadiapril
1. 3(3x+2/3)=5(2x-1/4) (di kalikan) 9x+2=10x-5/4 9x-10x+2 = -5/4 (di pindah ruas) -x+2 = -5/4 -x = -5/4-2 (di samakan penyebutnya) -x = -13/4 Ix-1 (agar x tidak minus(-) dikalikan -1) x = 13/4
9x+2 =10x-5/4
---------------------------------- x4
36 x+8 =40x-5
13 =4 x
x = 13/4
2) 3(2x+1/3)=4(3x-1/2)
6x+1 =12x-2
3 = 6x
x = 1/2
3) 5(2p+1/3)=3(4p-1/5)
10 p+ 5/3 = 12p-3/5
----------------------------------- x 15
150p+ 25 = 180 p-9
34 = 30 p
p = 17/15
4) 2x -1=x-1
x=0
9x+2=10x-5/4
9x-10x+2 = -5/4 (di pindah ruas)
-x+2 = -5/4
-x = -5/4-2 (di samakan penyebutnya)
-x = -13/4 Ix-1 (agar x tidak minus(-) dikalikan -1)
x = 13/4
2. 3(2x+1/3)=4(3x-1/2)
6x+1 = 12x-2
6x-12x+1=-2
-6x+1 =-2
-6x=-2-1
-6x=-3
x=-3/-6
x=1/2
3. 5(2p+1/3)=3(4p-1/5)
10p+5/3 = 12p-3/5
10p-12p+5/3=-3/5
-2p+5/3=-3/5
-2p=-3/5-5/3
-2p=-34/15
p=-34/15/-2
p=-34/15 x -2
p=-68/15
4. 2x-1=x-1
2x-x-1=-1
x-1=-1
x =-1+1
x =0