x-4867=(175.2050.70):25+23

x-4867=25112500:25+23

x-4867=1004500+23

x-4867=1004523

x=1004523+4867

x=1009390

Vậy x=1009390

\(a,\Rightarrow6x+70=130\Rightarrow6x=60\Rightarrow x=10\\ b,\Rightarrow240=\left(x+70\right):14-40\\ \Rightarrow\left(x+70\right):14=280\\ \Rightarrow x+70=3920\Rightarrow x=3850\\ c,\Rightarrow x-15=75\Rightarrow x=90\\ d,\Rightarrow\left(x+175\right):5=680-30=650\\ \Rightarrow x+175=3250\Rightarrow x=3075\\ e,\Rightarrow x-4867=1004523\Rightarrow x=1009390\\ f,\Rightarrow x+32-17=24\Rightarrow x=9\\ g,\Rightarrow3\left(x+1\right)=54\Rightarrow x+1=18\Rightarrow x=17\\ h,\Rightarrow19\left(35:x+3\right)=152\\ \Rightarrow35:x+3=8\Rightarrow35:x=11\Rightarrow x=\dfrac{35}{11}\)

a, \(420+65:4=\left(x+175\right):5+30\)

\(\Rightarrow\left(x+175\right):5+30=420+16,25\)

\(\Rightarrow\left(x+175\right):5=420+16,25-30=406,25\)

\(\Rightarrow x+175=2031,25\)

\(\Rightarrow x=1856,25\)

b, \(\left(32.15\right):2=\left(x+70\right):14-40\)

\(\Rightarrow\left(x+70\right):14-40=480:2\)

\(\Rightarrow\left(x+70\right):14=240+40=280\)

\(\Rightarrow x+70=3920\Rightarrow x=3850\)

c, \(x-4867=\left(175.2050.70\right):25+23\)

\(\Rightarrow x=39462500:25+23+4867\)

\(\Rightarrow x=1578500+23+4867=1583390\)

Chúc bạn học tốt!!!

a) x - 4867 = 2050.70. (175: 25) + 23

x - 4867 = 2050.70.7 + 23 =  1004 500 => x = 1 004 500 + 4867 =  1 009 367

b)  => (697 / 15) : x + 364 : x = 17 =>  \(\left(\frac{697}{15}+364\right):x=17\)

=> \(\frac{6157}{15}:x=17\) => x = \(\frac{6157}{15}:17=\frac{6157}{255}\)

c) => \(341=\frac{x+350}{x+315}\) => 341.(x+315) = x + 350 => 341x + 341.315 = x + 350 

=> 341x - x = 350 - 341.315 => 340x = -107 065 => x = -107 065 : 340 =....

mik chỉ biết làm phần b thôi thông cảm

đáp án phần B là 17

Good luck !

x - 4867 = (175.2050.70):25 + 24

x - 4867 = 251125:25 + 24

x - 4867 = 1004500 +24

x = 1004500 + 24 + 4867 

x = 1009391

a) 420 + 65.4 = (x+175):5+30                          b) x - 4867 = (175.2050.70):25+23

(x+175):5+30 = 420 + 65.4                                 x - 4867 = 1004523

(x+175):5+30 = 680                                            x = 999656

(x+175):5 = 650

x+175 = 3250

x = 3075

a) 420 + 65.4 = ( x + 175 ) : 5 + 30

   420 + 260 = ( x + 175 ) : 5 + 30

    680 = ( x + 175 ) : 5 + 30

    680 - 30 = ( x + 175 ) : 5

    650 = ( x + 175 ) : 5

    650 . 5 = x + 175

     3250 = x + 175

     x = 3250 - 175

     x = 3075

a﴿ x ‐ 4867 = 2050.70. ﴾175: 25﴿ + 23 x ‐ 4867

= 2050.70.7 + 23 = 1004 500

=> x = 1 004 500 + 4867 = 1 009 367

X - 4867 = 25112500 : 25  + 23

X - 4867 = 1004500 + 23

X - 4867 = 1004523 

       X = 1004523 + 4867 

       X = 1009390

x-4867=0:25+23

x-4867=0+23

x-4867=23

x        =4867+23

x        =4890

x- 4867=[175 x 2 - 50 x 7] :25 +23

x - 4876 = (350 - 350)  : 25 + 23

x - 4876 = 0

x = 0 + 4876

x = 4876