Tìm x
* X x 5 + 122 + 236 = 633
Bài 2: Tìm x
* X x 5 + 122 + 236 = 633
* (X : 12) x 7 + 8 = 36
x . 5 + 122 + 236 = 633
x . 5 + 358 = 633
x . 5 = 633 - 358
x . 5 = 275
x = 275 : 5
x = 55
b) (x : 12) . 7 + 8 = 36
(x : 12) . 7 = 36 - 8
(x : 12) . 7 = 28
x : 12 = 28 : 7
x : 12 = 4
x = 4 . 12
x = 48
#Học tốt!!!
X x 5 + 122 + 236 = 633
X x 5 + 122 = 633 - 236
X x 5 + 122 = 397
X x 5 = 397 - 122
X x 5 = 275
X = 275 : 5
X = 55
(X : 12) x 7 + 8 = 36
(X : 12) x 7 = 36 - 8
(X : 12) x 7 = 28
X : 12 = 28 : 7
X : 12 = 4
X = 12 : 4
X = 3
X.5+122+236=633
\(x.5+122+236=633\)
\(x.5+122=633-236\)
\(x.5+122=397\)
\(x.5=397-122\)
\(x.5=275\)
\(x=275:5\)
\(x=55\)
k mình mình k lại
x.5=633-122-236
x.5=511-236
x.5=275
x=275/5
x=55
a) x 5 + 122 + 236 = 633 b) (x : 12) 7 + 8 = 36
a/\(x\times5+122+236=633\)
\(x\times5=633-236-122\)
\(x\times5=275\)
\(x=275:5\)
\(x=55\)
b/\(\left(x:12\right)\times7+8=36\)
\(\left(x:12\right)\times7=36-8\)
\(\left(x:12\right)\times7=28\)
\(x:12=28:7\)
\(x:12=4\)
\(x=4\times12\)
\(x=48\)
cái ô vuông kia là dấu gì vậy bạn?
A. X x 5 + 122 + 236 = 633 B. 320 + 3 x X = 620 C. (X + 3) : 6 = 5 + 2 D. X x 8 - 22 = 13 x 2 ai nhanh nhất mình tick luôn làm nhanh nha
a. X x 5 + 112 = 633 - 236
X x 5 + 112 = 397
X x 5 = 397 - 112
X x 5 = 285
X = 285 : 5
X = 57
b. 3 x X = 620 - 320
3 x X = 300
X = 300 : 3
X = 100
c. (X + 3) : 6 = 7
X + 3 = 7 x 6
X + 3 = 42
X = 42 - 3
X = 39
câu 1:X x 5+112+236=633
câu 2:320+3x X=620
giúp mình với nhé!
Câu 1 \(x.5+112+236=633\Leftrightarrow x.5=285\)
\(\Leftrightarrow x=57\)
Câu 2 \(\frac{2}{320}+3x=620\Leftrightarrow3x=\frac{99199}{160}\)
\(\Leftrightarrow x=\frac{99199}{480}\)
* X x 5 + 122 +236 = 633 *( X : 12 ) x 7 + 8 = 36
X x 5 + 122 + 236 = 663
X x 5 = 663 -122 - 236
X x 5 = 305
X = 305 : 5
X = 61
Học tốt nhé bạn ~
X x 5 + 122 + 236 = 663 X x 5
= 663 -122 - 236 X x 5
= 305 X
= 305 : 5 X
= 61
\(\dfrac{x+2}{238}\)\(+\dfrac{x+3}{237}\)\(+\dfrac{x+4}{236}\)\(+\dfrac{x+5}{235}\)\(=4\)
Tìm x biết, X+1/125+x+2/124+x+3/123+x+4/122+x+146/5=0
Tìm x ϵ N biết:b) 35 - 5 (x - 1) = 10 c) 24. (x - 16) = 122 d) (x2 - 10) : 5 = 3
\(35-5\left(x-1\right)=10\\ \Leftrightarrow35-5x+5=10\\ \Rightarrow40-5x=10\)
\(\Rightarrow-5x=10-40\\ \Rightarrow-5x=-30\\ \Rightarrow x=\dfrac{-30}{-5}=6\)
c)
\(24\left(x-16\right)=12^2\)
\(\Rightarrow24x-384=144\\ \Rightarrow24x=144+384\\ \Rightarrow24x=528\\ \Rightarrow x=\dfrac{528}{24}=22\)
d)
\(\left(x^2-10\right)\div5=3\\ \Rightarrow\left(x^2-10\right)=3\times5\\ \Rightarrow x^2-10=15\)
\(\Rightarrow x^2=15+10\\ \Rightarrow x^2=25\\ \Rightarrow x^2=5^2\Rightarrow x=5\)
Ơ, bn ơi @Kenny sai sai ở đâu thì phải.