x+0,25=18/5+43/3

x+0,25=17/14/15

        x=17/14/15-0,25

        x=17/41/60

=> Vay: x=17/41/60

83/5-x=20,65-376/25

83/5-x=5,61

       x=83/5-5,61

       x=10,99

=> Vay: x=10,99

0,25x0,125x2,3=1/4x1/8x2,3=1/32x2,3=1/48

17,6x3,3x3,4x2,6=58,08x3,4x2,6=197,472x2,6=513,4272

7 năm chưa tìm  thấy ai trả lời à:))

ê bảy năm rồi đó mà chx ai trả lời à

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

a) y x 8 + y +25% = 36,34 

y x (8+1) + 0,25 = 36,34

y x 9 = 36,34 - 0,25

y x 9 = 36,09

y        = 36,09 : 9 

y        = 4,01

b) y + y :0,5 + y:0,25 + y:0,125 = 15

y + y x 2 + y x 4 + y x 8 =15

y x (1+2+4+8)=15

y x 15 =15

y=15: 15

y=1

   \(x+0,25=\frac{18}{5}+\frac{43}{4}\) 

\(\Leftrightarrow\) \(x+\frac{1}{4}\)\(=\frac{18}{5}+\frac{43}{4}\)

\(\Leftrightarrow\) \(x+\frac{5}{20}=\frac{287}{20}\)

\(\Leftrightarrow\) \(x=\frac{282}{50}\)

\(Vậy\) \(x=\frac{282}{50}\)

  \(\frac{83}{5}-x=20,25-\frac{376}{25}\)

\(\Leftrightarrow\) \(16,6-x=20,25-15,04\)

\(\Leftrightarrow\) \(16,6-x=5,21\)

\(\Leftrightarrow\) \(x=11,39\)

\(Vậy \) \(x=11,39\)

bạn ơi , bạn sai hết rồi . 

Thôi không sao đâu . Cậu thử sui nghĩ xem lại đi

(158 -x) : 7 = 20

158 -x = 140

x= 18

1,25 * 4 -x = 25

5-x = 25

x= 30

x-0,25 = 43/4 + 18/5

x= 43/4 + 1/4 + 18/5

x= 11 + 18/5

x= 73/5

a) y=10

b) y=7

\(a,\Rightarrow y=\dfrac{2\cdot5}{1}=10\\ b,\Rightarrow\dfrac{y}{5}=\dfrac{42}{25}:\dfrac{6}{5}=\dfrac{7}{5}\Rightarrow y=7\)

x - 0,25 = 43/4 + 18/5

\(x-\frac{1}{4}=\frac{287}{20}\)

\(x=\frac{287}{20}+\frac{1}{4}\)

\(x=\frac{73}{5}\)

\(x-0,25=\frac{43}{4}+\frac{18}{5}\)

\(\Rightarrow x-\frac{1}{4}=\frac{43}{4}+\frac{18}{5}\)

\(\Rightarrow x-\frac{1}{4}=\frac{287}{20}\)

\(\Rightarrow x=\frac{287}{20}+\frac{1}{4}\)

\(\Rightarrow x=\frac{73}{5}\)

\(\Rightarrow x=14,6\)

\(x-0,25=\frac{43}{4}+\frac{18}{5}\)

\(x-\frac{1}{4}=\frac{287}{20}\)

\(x=\frac{287}{20}+\frac{1}{4}\)

\(x=\frac{73}{5}\)