Các câu hỏi tương tự
Tim x biet : 20 . 2^x + 1 = 10.4^2 + 1
Tim x : ( 4-x:2)^3 - 1 = 2 . (2^3 - 5 : 2^0 )
Tim x biet
A 3/2.x-2/5=1/3.x-1/4
B -51/2.x+1=3/4-7/6
C 2.x-2/3=7.x+3/2-1
D 3/2.x-2/5=1/3.x -1/4
tim x biet 1/2(x-2/3)-1/3(2x-3)=x+1/2
tim x:(1+x)3-2(x-2)2=(x-2)3-3(3+x)2
tim x thuoc z biet:
a)2x-1+2x+1+2x+2=104
b)3x+2+3x+1+3x+3x-1=120
1 )Tim x, y thuoc Z
x + y = x.y
2) Tim x thuoc Z
(x + 1)+(x+3)+(x+5)+...+(x+99)=0(x-3)+(x-2)+(x-1)+...+10+11=11-12(x-5)+7(3-x)=530(x+2)-6(x-5)-24x=100
Bai 1 : Tim x :
a ) 1/2 . ( x - 1 ) + 1/3 . ( 1. x ) =2
b ) 1/2 . x - 1/2 + 1/3 . x
c ) 1/2 . ( x -1 ) + 1/3 = -1/2 .x
d ) 3/7 . ( 1 - x ) - 1/5 = 1/7 .x
e ) 1/2 . ( x -1 ) = 1/3 . ( x-2 )
Ai lam nhanh va dung mk se tick cho nha .
tim x
a 2-/3phần2.x/=1phần4
b /x-3/-/-2-x/=7
c /x+4/-/x-1/=3
d /x-2/./x+3/:x-1>0
e /x-2/=/5-x/
Tim x thuoc Z
1/ x(x+3)=0
2/ (x-2)(5-x)=0
3/(x-1)(x2+1)=0