3x-1(5+1)=162
=> 3x-1=162/6=27
=>3x-1=27=33
=> x-1=3 =>x=2
Đúng 0
Bình luận (0)
3x-1(5+1)=162
=> 3x-1=162/6=27
=>3x-1=27=33
=> x-1=3 =>x=2
Tim x biet:
(3/4x + 5) - (2/3x - 4) - (1/6x + 1) = (1/3x + 4) - (1/3x - 3)
Tim x biet: (3/4x+5)-(2/3x-4)-(1/6x+1)=(1/3+4)-(1/3x-3)
tim x ,y,z biet : 3x-2y/5=3x-1/4=2y+5/7
tim x ,y,z biet :
3x-2y/5=3x-1/4=2y+5/7
tim x ,y,z biet :
3x-2y/5=3x-1/4=2y+5/7
tim x biet :
a) |x+1| +|x-5| = 7
b)|2x + 5|=3x-8
tim x biet
|x+1|+|3x+2|=3x
|x-2|+4|x+1|=x-3
Tim x biet :a)/x+1/+/3x-1/+/x-1/
Tim x,y,z biet (x-1)/2= (y+3)/4 =(z-5)/6 va 5z-3x-4y