2x+2x+3=144
2x.(1+23)=144
2x.9=144
2x=16
2x=24
=>x=4
Đúng 0
Bình luận (0)
Đại số lớp 7
Các câu hỏi tương tự
Tim cac so x, y, z biet : 2x-2 .3y-3 .5z-1 =144.
Xin loi vi khong viet dau duoc, cac ban co gang giup me lam nhanh nhe, me dang can gap
tim x biet: ||x-1/2|.|2x-3/4||=2x-3/4
|(x+1/2).|2x-3/4||=2x-3/4 tim x biet
Tim nghiem
x^3 +2x^2+2x+1
tim xy |x+1/3|+|x+1+!/3|=4+1/2x
Tim x
2 - /3/2x - 1/4/=/-5/4/
tìm x:
a,(x - 2)3= -27 b,(2x + 1)4 =81 c,2x + 2x + 3 = 144 d,(5x - 2)10 = (5x - 2)100
e,(\(\dfrac{2x-3}{4}\) )2016 + (\(\dfrac{3y+4}{5}\))2018 = 0
Tìm x biết :
a) \(\dfrac{3x+2}{5x+7}=\dfrac{3x-1}{5x+1}\)
b) \(\dfrac{x+1}{2016}+\dfrac{x}{2017}=\dfrac{x+2}{2015}+\dfrac{x+3}{2014}\)
c) (2x - 1 )2 = ( 2x - 1 )2018
d) ( x - 1 )x + 2 = ( x - 1 )x + 4
e) ( 2x - 3 )2 = 144
Tim gia tri lon nhat
A=4x-x^2-3
B-x^2-4x-2
C=2x-2x^2-5
D=-2x^2-3x+5