a) \(2x-13=2^3.3^2\)
=> \(2x-13=8.9=27\)
=> \(2x=27-13=14\)
=> \(x=7\)
b) \(231-\left(x-6\right)=1339:13=103\)
=> \(x-6=231-103=128\)
=> \(x=6+218=224\)
tim so tu nhien x biet
a) 2.x -138=23.32
b)231-(x-6)=1339:13
tim so tu nhien x biet
a, 2.x -138=23.32
b, 231-(x-6)= 1339 :13
Tìm số tự nhiên x, biết :
a. 10 + 2.x = 45 : 43 b. 2.x - 138 = 23.32 c. 231 - ( x - 6 ) = 1339 : 13
tim x thuoc N biet
a,3x:11=0
b,231-(x-6)=1339:13
c,x.(x-15)=0
d,(x-1).(x-20)=0
e,25:x=x (x khac 0)
f,2782:[216-(x-3) ]=13
tim x thuoc N biet
10 + 2 . x = 4 .4.4.4.4 : 4.4.4
231 - ( x -6) = 1339 : 13
1818 : ( 6x - 37 ) = 18
21 + ( 25 - x) =50
( x + 13) :5=2
( 2600+6400) - 3x=1200
Tim cac cap so tu nhien x,y biet
a) ( x - 3 ) . ( y + 5 ) = 13
tìm số tự nhiên x, biết:
a/ 2x-138=2^3.3^2
b/ 231-(x-6)=1339:13
1.Tim x,biết
a)2.x-138=23.32
b)231-(x-6)=1339÷13
c)[(6.x-72)÷2-84].28=5628
tim so tu nhien x biet
a xEB(15) 20<x<80
b) x chia het 13 10<x<70