Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(\frac{1}{4}+\frac{1}{3}:2x=-5\)
<=>\(\frac{1}{3}:2x=\frac{-21}{4}\)
<=>\(2x=\frac{1}{3}:\frac{-21}{4}\)
<=>\(2x=\frac{-4}{63}\)
<=>\(x=\frac{-2}{63}\)
GTTD cua mot so luon luon lon hon hoac bang 0
a)=>|4-0,5x|=0
=>A=-17 ( de A dat GTLN)
b) =>2|1/2.x-8|=0
=>x=16=>B=5 (de B dat GTLN)
c) de j the ?
đổi ảnh đại diện điiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
ròi tau làm choooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
1,
2x + 5 = 19
2x = 19 - 5
2x = 14
x = 14 : 2
x = 7
2,
( 1 - 2x ) + 5 = 10
( 1 - 2x ) = 5
2x = 1 - 5
2x = -4
x = -4 : 2
x = -2
1) 2x + 5 = 19
2x = 19 - 5
2x = 14
x = 14 : 2
x= 7
2) (1-2x) + 5 = 10
(1- 2x) = 10 - 5
(1-2x) = 5
2x = 1-5
2x = -4
x= -4 : 2
x = -2
8 : 8 = 1 16 : 8 = 2 24 : 8 = 3 32 : 8 = 4 40 : 8 = 5 48 : 8 = 6 56 : 8 = 7 64 : 8 = 8 72 : 8 = 9 80 : 8 = 10
8 : 8 = 1
16 : 8 = 2
24 : 8 = 3
32 : 8 = 4
40 : 8 = 5
48 : 8 = 6
56 : 8 = 7
64 : 8 = 8
72 : 8 = 9
80 : 8 = 10
Nên xem lại đề bạn nhé!
\(\frac{2x+8}{2x+1}=\frac{2x+1+7}{2x+1}=1+\frac{7}{2x+1}\)