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x - 4867 = (175.2050.70):25 + 24
x - 4867 = 251125:25 + 24
x - 4867 = 1004500 +24
x = 1004500 + 24 + 4867
x = 1009391
a, \(420+65:4=\left(x+175\right):5+30\)
\(\Rightarrow\left(x+175\right):5+30=420+16,25\)
\(\Rightarrow\left(x+175\right):5=420+16,25-30=406,25\)
\(\Rightarrow x+175=2031,25\)
\(\Rightarrow x=1856,25\)
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) 3636:(12x-91) =36
12x-91 = 3636:36
12x-91=101
12x=101+91
12x=192
x=192:12
x=16
b) (x : 23+45).67=8911
(x : 23+45)=8911:67
(x : 23+45)=133
x:23=133-45
x:23=88
x=88.23
x=2024
c) 420+65.4 =(x+175):5+30
420+260=(x+175):5+30
680=(x+175):5+30
(x+175):5=680-30
(x+175):5=650
(x+175)=650x5
(x+175)=3250
x=3250-175
x=3075
d) (32.15):2=(x+70):14-10
480:2=(x+70):14-10
240=(x+70):14-10
(x+70):14=240+10
(x+70):14=250
(x+70)=250.14
(x+70)=3500
x=3500-70
x=3430
e)x-4867=(175.2-50.70):25+23
x-4867=(350-3500):25+23
x-4867=-3150:25+23
x-4867=-126+23
x-4867=-103
x=-103+4867
x=4764
420 + 65 . 4 = ( x + 175 ) : 5 + 30
=> ( x + 175 ) : 5 + 30 = 420 + 45 . 4
=> ( x + 175 ) : 5 + 30 = 600
=> ( x + 175 ) : 5 = 600 - 30
=> ( x + 175 ) : 5 = 570
=> x + 175 = 570 . 5
=> x + 175 = 2850
=> x = 2850 - 175
=> x = 2675
nha bn
các câu khác tương tự nhé
nhớ ủng hộ mik nha mn
\(\text{Tìm x hở e????}\)
~~~~~~~~~
\(\text{420 + 65 . 4 = ( x + 175 ) : 5 + 30}\)
\(420+260=\left(x+175\right):5+30\)
\(680=\text{ ( x + 175 ) : 5 + 30}\)
\(\text{ ( x + 175 ) : 5 + 30=680}\)
\(\text{ ( x + 175 ) : 5 =680-30}\)
\((x+175):5=650\)
\(x+175=650:5\)
\(x+175=130\)
\(x=130-175\)
\(x=-45\)
\(\text{(32.15) : 2 = (x + 70) : 14 - 40}\)
\(480:2=\text{ (x + 70) : 14 - 40}\)
\(240\text{ = (x + 70) : 14 - 40}\)
\(\text{ (x + 70) : 14 =280}\)
\(x+70=3920\)
\(x=3920-70\)
\(x=3850\)
\(\text{x - 4867 = ( 175 . 2050 . 76) + 25 + 23}\)
\(\text{x - 4867 = ( 175 . 2050 . 76) + 48}\)
\(x-4867=27265000+48\)
\(x-4867=27265048\)
\(x=27265048+4867\)
\(x=27260015\)
\(\text{Hok giỏi nhé!~!!}\)
420 + 65x4 = ( x + 175) : 5 + 30
420 + 260 = x : 5 + 175 : 5 + 30
680 = x : 5 + 35 + 30
680 - 30 = x : 5 + 35
650 = x : 5 + 35
650 - 35 = x : 5
615 = x : 5
615 x 5 = x
3075 = x
b) ( 32 x 15) : 2 = ( x + 70):14 - 40
480 : 2 = x : 14 + 70 : 14 - 40
240 = x : 14 + 5 - 40
240 + 40 = x : 14 + 5
280 = x: 14 + 5
280 - 5 = x : 14
275 = x : 14
275 x 14 = x
3850 = x
c) x - 4867 = ( 175 x 2050 x 70) : 25 + 23
x - 4867 = 25 112 500 : 25 + 23
x - 4867 = 1004500 + 23
x - 4867 = 1004523
x = 1004523 + 4867
x = 1008390
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
575- [6x+70] = 445 315 +[125-x] = 435 f 541+[218-x]=435
6x+70 =575-445 125-x = 435- 315 218-x = 541-435
6x+70 = 130 125-x =120 218-x =106
6x = 130-70 x = 125 - 120 x = 218-106
6x = 60 x = 5 x = 112
x = 60:6
x = 10
bạn ơi khó hiểu quá,.,.,.
\(\orbr{\begin{cases}\\\end{cases}}\)
\(a,\Rightarrow6x+70=130\Rightarrow6x=60\Rightarrow x=10\\ b,\Rightarrow240=\left(x+70\right):14-40\\ \Rightarrow\left(x+70\right):14=280\\ \Rightarrow x+70=3920\Rightarrow x=3850\\ c,\Rightarrow x-15=75\Rightarrow x=90\\ d,\Rightarrow\left(x+175\right):5=680-30=650\\ \Rightarrow x+175=3250\Rightarrow x=3075\\ e,\Rightarrow x-4867=1004523\Rightarrow x=1009390\\ f,\Rightarrow x+32-17=24\Rightarrow x=9\\ g,\Rightarrow3\left(x+1\right)=54\Rightarrow x+1=18\Rightarrow x=17\\ h,\Rightarrow19\left(35:x+3\right)=152\\ \Rightarrow35:x+3=8\Rightarrow35:x=11\Rightarrow x=\dfrac{35}{11}\)