
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.


a)42.3-x=78
126-x=78
x=48
b)34.4+x=215
136+x=215
x=79
c)x.6=21
x=3,5
d)x:4=48
x=192

x *6+ ( 1 + 2 + 3 + 4 + 5 ) = 45
x*6=45-15=30
x=30:6=5
ủng hộ nha các bạn

a, 72:X=2.4
72 : X = 8
X= 72:8
X=9
b, X.8=24 . 3
X . 8 = 72
X= 72 : 8
X = 9
c, 55 : X = 20 : 4
55 : X = 5
X = 55 : 5
X= 11
a) 72 : X = 2 x 4
72 : X = 8
X = 8 : 72
X = \(\frac{1}{9}\)
Vậy x = \(\frac{1}{9}\)
b) X x 8 = 24 x 3
X x 8 = 72
X = 72 : 8
X = 9
Vậy x = 9
C) 55 : X = 20 : 4
55 : X = 80
X = 80 : 55
X = \(\frac{16}{11}\)
Vậy x = \(\frac{16}{11}\)

y x 3 + x x 3 = 60
( y + x ) x 3 = 60
y + x = 60 : 3
y + x = 20
y , x = 20 : 2
y , x = 10
y , x = 9

(x+1)+(x+2)+(x+3)+(x-4) = 98
4x + (1+2+3 - 4) = 98
4x + 2 = 98
4x = 98 - 2
4x = 96
x = 96 : 4
x = 24
tích mik nhe !!!


[ 3 . ( x + 2 ) : 7 ] . 4 = 120
[ 3 . ( x + 2 ) : 7 ] = 120 : 4
[ 3 . ( x + 2 ) : 7 ] = 30
3 . ( x + 2 ) = 30 . 7
3 . ( x + 2 ) = 210
( x + 2 ) = 210 : 3
( x + 2 ) = 70
x = 70 - 2
x = 68
\(\left[3.\left(x+2\right):7\right].4=120\)
\(3.\left(x+2\right):7=480\)
\(3.\left(x+2\right)=480.7\)
\(3.\left(x+2\right)=3360\)
\(x+2=3360:3\)
\(x+2=1120\)
\(x=1120-2\)
\(x=1118\)

x : 3 = 3000
x = 3000 x 3
x = 9000
x : 4 = 34564
x = 34564 x 4
x =138256
x : 3 = 3000
x = 3000 x 3
x = 9000
x : 4 = 34564
x = 34564 x 4
x = 138256

a ) X : 4 = 3845 - 2600 b) X x 3 = 3600 - 1200
X : 4 = 1245 X x 3 =2400
X = 1245 x 4 =4980 X = 2400 : 3 = 800
x + 3 = 4
x = 4 - 3
x = 1
\(x+3=4\)
\(x=4-3\)
\(x=1\)
Vậy x = 1