\(a\)\(=6+182+3.3\)

\(=188+9=197\)

\(b;15-200:50\)

\(=15-4=11\)

\(c;200-60+\frac{170}{7}-8\)

\(=140+\frac{114}{7}\)

\(=\frac{1094}{7}\)

a)18 : 3 + 182 + 3.(51:17)

= 6 + 182 + 3.3

= 188 + 9

= 197

b) 15 - 25.8:(100:2)

= 15 - 200 : 50

= 15 - 4 

= 11

c) 25.8 - 12.5 + 170:17 - 8

= 200 - 60 + 10 - 8

= 142

ban nao biet

x : 15 +95 = 15 + 200

x : 15 +95 = 215 

x : 15 = 215 -95 

x : 15 = 120

x    = 120 x 15 

x= 1800

nho k

\(x:15+95=15+25.8\)

\(x:15+95=15+200\)

\(x:15+95=215\)

\(x:15=215-95\)

\(x:15=120\)

\(x=120.15\)

\(x=1800\)

X:110=40,8

X=40,8:110

X=0.37

\(\frac{x}{15}+95=15+25\times8\)

\(\frac{x}{15}=15+200-95\)

\(\frac{x}{15}=120\)

\(x=120\times15\)

\(x=1800\)

\(\frac{x}{15}+95=15+25\cdot8\)

\(\frac{x}{15}+95=215\)

\(\frac{x}{15}=215-95=120\)

\(x=120\cdot15=1800\)

x = \(\frac{173}{15}\)

Bài 1 :

a) 1440 : [ 41 - (2x - 5)] = 2⁴.3

=> 1440 : [41 - (2x - 5)] = 16.3

=> 1440 : [41 - (2x - 5)] = 48

=> 41 - (2x - 5) = 1440 : 48 = 30

=> 2x - 5 = 11

=> 2x = 16

=> x = 8

b) 5 . [225 - (x - 10)] - 125 = 0

=> 5 . [225 - (x - 10)] = 125

=> 225 - (x - 10) = 125 : 5 

=> 225 - (x - 10) = 25

=> x - 10 = 200

=> x = 210

Bài 2 :

a) [ 545 - (45 + 4.25)] : 50 - 200 : 250 + 2¹⁵ : 2¹³

= [ 545 - (45 + 100)] : 50 - 4/5 + 2²

= [545 - 145] : 50 - 4/5 + 4

= 400 : 50 - 4/5 + 4 = 8 - 4/5 + 4 =56/5

Mấy câu còn lại tương tự

Bài 1.

a, 1440:[41-(2x-5)]=2⁴.3

    1440:[41-(2x-5)]= 16.3

     1440:[41-(2x-5)]=48

      [41-(2x-5)]    =1440:48

      [41-(2x-5)]   = 30

        2x-5         = 41-30

        2x-5        =11

         2x           = 11+5

         2x           = 16

           x          = 16:2

           x          =8

b, 5.[225-(x-10)]-125=0

    5.[225-(x-10)]        =125

       [225-(x-10)]        =125:5

       [225-(x-10)]        = 25

        (x-10)                = 225-25

        (x-10)                = 200

        x                        =200+10

        x                        = 210

Bài 2.

a, [545-(45+4.25)]:50-200:250+2¹⁵:2¹³

   = [545-(45+100)]:50-200:250+2²

   = [545-145]:50- 200:250+4

   = 400:50-200:250+4

   = 8-0,8+4

   = 7,2 + 4

   = 11,4

b, [504-(25.8+70)]:9-15+19⁰

=  [504-(200+70)]:9-15+1

= [504-270]:9-16

= 234:9-16

= 26-16

= 10

c, 5.{26-[3.(5+2.5)+15]:15}

= 5.{26-[3.(5+10)+15]:15}

= 5.{26-[3.15+15]:15}

= 5.{26-[45+15]:15}

= 5.{26-60:15}

= 5.{26-4}

=5.22

= 110

d,[1104-(25.8+40)]:9+3¹⁶:3¹²

= [1104-(200+40)]:9+3⁴

=[1104-240]:9+3⁴

=864:9+81

=96+81

=177

hok tốt

oki nhưng mình ko biết . Hì Hì

a: \(\left[504-\left(25\cdot8+70\right)\right]:9-15+19^0\)

\(=\left(504-270\right):9-15+1\)

\(=29-14\)

=15

a) [504 - (25 . 8 + 70)] : 9 - 15 + 19⁰

[504 - (25 . 8 + 70)] : 9 - 15 + 1

[504 - (200 + 70)] : 9 - 15 + 1

(504 - 270) : 9 - 15 + 1

234 : 9 - 15 + 1

= 26 - 15 + 1

= 11 + 1

= 12

b) 5 . {26 - [3 . (5 + 2 . 5) + 15] : 15}

5 . {26 - [3 . (5 + 10) + 15] : 15}

5 . [26 - (3 . 15 + 15) : 15]

5 . [26 - (45 + 15) : 15]

5 . (26 - 60 : 15)

5 . (26 - 4)

= 5 . 22

= 110

a,27.75+25.27-150

=27.(75+25)-150

=27.100-150

=2700-150

=2550

c,13.17-256:16+14:7-1

=221-16+2-1

=205+2-1

=208-1

=207

d,18:3+182+3.(51:17)

=18:3+182+3.3

=6+182+9

=188+9

=197

e,15-25:8(100.2)

=15-25:8.200

=15-3,125.200

=15-625

=-610

f,25.8-12.5+170:17-8

=200-60+10-8

=140+10-8

=150-8

=142

12:1400.(500-(125+25.70 tôi ko biết làm 

=15-200.200

=15-40000

=-39985

Nhớ nhé!

=15-200:200

=15-1

=14

15 - 25 . 8 . ( 100 . 2 )

= 15 - 25 . 8 . 200

= 15 - 1000 . 200

= 15 - 200000

= - 199985