\(x\) + \(x\): 0,25 + \(x\) : 0,5 + \(x\) : 0,125 = 40

\(x\) \(\times\) 1+ \(x\) \(\times\) 4 + \(x\) \(\times\) 2 + \(x\times\) 8 = 40

\(x\) \(\times\) ( 1 + 4 + 2 + 8) = 40

\(x\) \(\times\) 15 = 40

\(x\)          = 40 : 15

\(x\)          = \(\dfrac{8}{3}\)

6: \(9,5\times4,7+9,5\times4,3+9,5\)

\(=9,5\times\left(4,7+4,3+1\right)\)

\(=9,5\times10=95\)

5: \(32\times1,25\times2,5+0,476+0,524\)

\(=80\times1,25+1\)

=100+1

=101

4: \(3,5\times0,5+3,5\times0,125+3,5\times22,5\times4\)

=3,5x(90+0,5+0,125)

=3,5x90,625

=317,1875

3: \(32\times1,25\times2,5+\frac{54}{10}\times8,7+5,4\times3,3-10,8\)

\(=40\times2,5+5,4\times8,7+5,4\times3,3-5,4\times2\)

=100+5,4x(8,7+3,3-2)

=100+5,4x10

=100+54

=154

2: \(15,25\times0,5+15,25\times0,25+15,25\times0,125+15,25\times6\)

=15,25x(0,5+0,25+0,125+6)

=15,25x6,875

=104,84375

1: 2020x0,56+0,34x6060+8080x0,85+2020x5,02

=2020x0,56+2020x1,02+2020x3,4+2020x5,02

=2020x(0,56+1,02+3,4+5,02)

=2020x10

=20200

ko bt

\(=2,02\times8+2,02\times\dfrac{5}{2}+2,02\times0,5\\ =2,02\times\left(8+\dfrac{5}{2}+0,5\right)\\ =2,02\times\left(\dfrac{8.2+5+1}{2}\right)\\ =2,02\times\dfrac{22}{2}\\ =2,02\times11\\ =22,22\)

`2,02:0,125 + 2,02 : 40% + 2,02 xx 0,5`

`= 2,02 xx 8 + 2,02 xx 2,5 + 2,02 xx 0,5`

`=2,02 xx (8+2,5+0,5)`

`=2,02 xx 11`

`=22,22`

heheheheheheboyyyy
a, x:0,5+x:0,125 đáp án đâu baaa
b,(3,5x10)x(53x11-5300x0,1-53)
(3,5x10)x(53x11-53x10-53x1)
(3,5x10)x[53x(11-10-1)]
(3,5x10)x(53x0)
35x0
=0
tick hộ anh vs

phần a vs anh ey

0,5 + x : 0,125 = 10,35

x : 0,125 = 10,35 - 0,5

x : 0,125 = 9,85

x = 9,85 × 0,125

x = 1,23125

x : 0,5 + x × 0,5 = 0,75

x × 1 + x × 0,5 = 0,75

x × (1 + 0,5) = 0,75

x × 1,5 = 0,75

x = 0,75 : 1,5

x = 0,5

=>10x=9,78

hay x=0,978