=>|5x-3|=2x+14
Vì 5x-3>=0 với mọi x
=>2x+14>=0
=>2x>=-14
=>x>=-7
Th1:5x-3=2x+14
=>5x-2x=3+14
=>3x=17
=>x=17/3 (thỏa mãn điều kiện x>=-7)
Th2:3-5x=2x+14
=>3-14=2x+5x
=>-11=7x
=>x=-11/7 (thỏa mãn điều kiện x>=-7)
tim x biet ll3x-3l+2x+1l=3x+2021^0
giai ho toi bai tim x
x+|x|=2x
BAI 1 : Tim x;y;z biet 6x 3/5 4y 6x/7 3z 4y Va 2x 3y 5z 21
giai bai toan sau tim x , y biet : 2x-3 / 2 = 32 / 2x-3
Bai tap ve day ti so bang nhau
BAI 1 : Tim x;y;z biet
6x-3/5 = 4y-6x/7 = 3z-4y
Va 2x+3y-5z + -21
a, \(\frac{3}{4}-\frac{2}{5}.x=x\)
b,( 2x - 1 ) . ( 3x - 1/5 ) . ( 4 - 2x ) = 0
bai toan tim x
giúp mk nhé !
mai mk phải nộp òi
bai 1: Tim x
a) (x-1)^3 =27
b ( 2x +1)^2=25
c) (x-1)^x+2=(x-1)x+4
d) ( 2x-1)^3 =-8
e) 2^2x-2x=96
GIUP MK VOI NHA MK DANG CAN GAP LAM
moi nguoi hay chieu co giup em vs:
c,3(2x-1)-5(x-3)+6(3x-4)=24
d,2x(5-3x)+2x(3x-5)-3(x-7)=3
xin dc cam on trc ah! Day la bai tim x ah!
giup wm giai bai toan nay
cho: -1\2=y-2\3=z-3\4 va 2x+y-z=50
tim x,y,z
