x+0,25=18/5+43/3
83/5-x=20,65-376/25
0,25x0,125 x2,3
15,6x3,3x3,4x2,6
Tìm y
a, y + 0,25 = 18/5 + 43/4
b, 83/5 - y = 20,65 - 376/25
a) \(y+0,25=\frac{18}{5}+\frac{43}{4}\)
\(y+0,25=3,6+10,75\)
\(y=14,35-0,25\)
\(y=14,1\)
vậy \(y=14,1\)
b) \(\frac{83}{5}-y=20,65-\frac{376}{25}\)
\(16,6-y=20,65-15,04\)
\(y=16,6-5,61\)
\(y=10,99\)
vậy \(y=10,99\)
học tốt Nguyễn Anh Thư
83/5 - x =20,65 -376/25
7 năm chưa tìm thấy ai trả lời à:))
ê bảy năm rồi đó mà chx ai trả lời à
83/5-x=20,65-376/25
16,6 - x = 60,65 - 15,04
16,6 - x = 45,61
x = 16,6 - 45,61
x = -29,01
83/5 - x = 60,65 - 376/25
16.6 - x = 60,65 - 15.04
16.6 - x = 45.61
x = 16.6 - 45.61
x = -29.01
Hok tốt
16,6-x=60,65-15,04
16,6-x=45,61
x=16,6-45,61
x=-29,01
vậy x=-29,01
x + 0,25 = 18/5 + 43/4
x+0,25=3,6+10,75
x+0,25=14,35
x+0,25=14,35-0,25
x+0,25=14,1
x =14,1-0,25
x=13,85
ta có
x + 0,25 = 43/4 - 18/5
=> x + 1/4 = 143/20
=> x = 143/20 - 1/4
=> x = 25/4
vậy x = 25/4
\(x+0,25=\dfrac{18}{5}+\dfrac{43}{4}\)
`x+0,25=18/5+43/4`
`x+0,25=3,6+10,75`
`x=3,6+10,5`
`x=14,1`
Vậy `x=14,1`
`x+0,25=18/5+43/4`
`⇔x+1/4=18/5+43/4`
`⇔ x-18/5=43/4-1/4`
`⇔ x-18/5=42/4=21/2`
`⇔ x-36/10=105/10`
`⇔ x=141/10`
Tìm x:
X - 0,25 = 43/4 + 18/5
x - 0,25 = 43/4 + 18/5
\(x-\frac{1}{4}=\frac{287}{20}\)
\(x=\frac{287}{20}+\frac{1}{4}\)
\(x=\frac{73}{5}\)
\(x-0,25=\frac{43}{4}+\frac{18}{5}\)
\(\Rightarrow x-\frac{1}{4}=\frac{43}{4}+\frac{18}{5}\)
\(\Rightarrow x-\frac{1}{4}=\frac{287}{20}\)
\(\Rightarrow x=\frac{287}{20}+\frac{1}{4}\)
\(\Rightarrow x=\frac{73}{5}\)
\(\Rightarrow x=14,6\)
\(x-0,25=\frac{43}{4}+\frac{18}{5}\)
\(x-\frac{1}{4}=\frac{287}{20}\)
\(x=\frac{287}{20}+\frac{1}{4}\)
\(x=\frac{73}{5}\)
1. x - 8 +32= 68
2. x +8+32=68
3. 98-x +34=43
4. 98+x-34=43
5. x :5:4=800
6. 18+x=384:8
7. (84,6-2 x x):3,02= 5,1
8. x x5= 120:6
9. (15x 24-x) :0,25= 100:0,25
1. \(x-8+32=68\)
\(x-8=68-32\)
\(x-8=36\)
\(x=36+8\)
\(x=44\)
_____
2. \(x+8+32=68\)
\(x+8=68-32\)
\(x+8=36\)
\(x=36-8\)
\(x=28\)
_____
3. \(98-x+34=43\)
\(98-x=43-34\)
\(98-x=9\)
\(x=98-9\)
\(x=89\)
_____
4. \(98+x-34=43\)
\(98+x=43+34\)
\(98+x=77\)
\(x=77-98\)
\(x=-21\)
_____
5. \(x:5:4=800\)
\(x:5=800.4\)
\(x:5=3200\)
\(x=3200.5\)
\(x=16000\)
_____
6. \(18+x=384:8\)
\(18+x=48\)
\(x=48-18\)
\(x=30\)
_____
7. \(\left(84,6-2\times x\right):3,02=5,1\)
\(84,6-2.x=5,1.3,02\)
\(84,6-2.x=15,402\)
\(2.x=84,6-15,402\)
\(2.x=69,198\)
\(x=69,198:2\)
\(x=34,599\)
_____
8. \(x\times5=120:6\)
\(x.5=20\)
\(x=20:5\)
\(x=4\)
_____
9. \(\left(15\times24-x\right):0,25=100:0,25\)
\(\left(15.24-x\right):0,25=400\)
\(15.24-x=400.0,25\)
\(15.24-x=100\)
\(360-x=100\)
\(x=360-100\)
\(x=260\)
1,x-8+32=68
=>x-8=68-32=36
=>x=36+8=42
2,x+8+32=68
=>x+8=68-32=36
=>x=36-8=28
3,98-x+34=43
=>98-x=43-34=9
=>x=98-9=89
4,98+x-34=43
=>98+x=43+34=77
=>x=77-98=-21
5,x:5:4=800
=>x:20=800
=>x=800x20=16000
6,18+x=384:8=48
=>x=48-18=30
7,(84,6-2x):3,02=5,1
=>84,6-2x=5,1x3,02=15,402
=>2x=84,6-15,402=69,198
=>x=69,198:2=34,599
8,5x=120:6=20
=>x=20:5=4
9,(15x24-x):0,25=100:0,25=400
=>360-x=400x0,25=100
=>x=360-100=260.
1. \(...\Rightarrow x+24=68\Rightarrow x=68-24=44\)
2. \(...\Rightarrow x+40=68\Rightarrow x=68-40=28\)
3. \(...\Rightarrow3^{2\left(8+x\right)}=9=3^2\Rightarrow2\left(8+x\right)=2\Rightarrow8+x=1\Rightarrow x=-7\)
4. \(...\Rightarrow3^{2\left(8+x\right)}=77\) (bạn xem lại đề)
5. \(...\Rightarrow x:5=800.4\Rightarrow x:5=3200\Rightarrow x=3200.5=16000\)
6. \(...\Rightarrow18+x=48\Rightarrow x=48-18=30\)
7. \(...\Rightarrow84,6-2x=5,1.3,02=15,402\Rightarrow2x=84,6-15,402\Rightarrow2x=69,198\Rightarrow x=34,599\)
8. \(...\Rightarrow5.x=20\Rightarrow x=20:5=4\)
9. \(\left(360-x\right):0,25=400\Rightarrow360-x=400.0,25=100\Rightarrow x=400-100=300\)
x+0,25=18 phần 5 + 43 phần 4
x+0,25 =\(\frac{18}{5}+\frac{43}{4}\)
\(x+\frac{1}{4}-\frac{18}{5}-\frac{43}{4}=0\)
\(\frac{20x+5-72-215}{20}=0\)
20x-282 =0
x= \(\frac{282}{20}\)
x= \(\frac{141}{10}\)
Vậy x=141/10
75%xX+3/4xX+X=30
x+0,25= 18/5+43/4