Tim x biet
x-4/3=x+2/-2
2x-1/x-3=2x+3/x-1
Tim x,y,z biet:
\(\frac{x}{2}=\frac{y}{3}=\frac{z}{4}\) va \(x^2-y^2+2x^2=108\)
cac bn oi giup mk voi
b1 tim x biet
a,3x+2+3x+1+3x=117
b,32x+1=1/81
c,(x+2)4=16
Tim x, biet:
a.(3-x)+(2x+7)=2x
b. \(\dfrac{x+1}{2}=\dfrac{1}{3}\)
GIUP MK VS
a)Tim so nguyen x va y biet :
5/x+y/4=1/8
b)Tim so nguyen x de A co gia tri la 1 so nguyen biet :
A=(căn x +1) /(căn x -3) (x lớn hơn hoặc bằng 0)
Bai 2: Tim x biet:
1) 2\(^{x-1}=16\) 5) (x-1)\(^2\)=25 6) \(\left|2x-1\right|=5\)
tim x;y biet:
4x=3y và (x-y)2+(x+y)2= 50
2x=5y và (x+y)3+ (x-y)3= 2960
Tim x biet
( 2x - 7 )^24 + ( 7 - 2x)^24 = 2
tim x
2 - /3/2x - /1/4/=/-5/4