(4/5-2x).14/7=11/4
4/5-2x=11/4:14/7
4/5-2x=11/4.7/14
4/5-2x=11/8
2x = 4/5 - 11/8
2x=32/40 -44/40
2x=- 3/10
x=-3/10:2
x=-3/10.2
x=-3/5
=>(4/5-2x)=11/4:2=11/8
=>2x=4/5-11/8=-23/40
=>x=-23/80
1,Tìm x
5^x-5^x+2=650
2x-3/11+2x-4/12+2x-5/13=2x-6/14+2x-7/15+2x-8/6
Tìm x:
1) 2x + 12 = 3(x - 7)
2) -10 + 2 (x + 1) = 4x - 8
3) -5 - (24 - 2x) = = -11 + x
4) 2(x - 5) - 3(x + 7) = 14
5) 4(x + 3) - 5(2 - x) = 10x - 15
Tìm số tự nhiên x biết:
(x+2)-2=0
(x+3)+1=7
(3x-4)+4=12
(5x+4)-1=13
(4x-8)-3=5
8-(2x-4)=2
7+(5x+2)=14
5-(3x-11)=1
Giúp e vs ạ(Vui lòng trình bày ạ)
tìm x biết :
a, 1/2x - 3/4 = 14/9 .3/7
b, (4,5 -2x ) (-1 4/7 ) =11/14
( -1 4/7 là hỗn số nhà)
tìm x,biết
a, 1/12x-75%x=-1/2/3
b,(4,5-2x)(-1/4/7)=11/14
c,(-2x/5+1):(-5)=-1/25
Tìm x:
a) x + 30% x = -1,31
b) ( x - 1/2 ) : 1/3 + 5/7 = 9 5/7 (hỗn số)
c) 1/2x - 3/4 = 14/9 . 3/7
d) -5/6 - x = 7/12 + -1/3
e) x + 3/ -15 = 1/3
f) (4,5 - 2x) .( -1 4/7(hỗn số)) = 11/14
BẠN NÀO GIÚP MK MK SẼ TICK
Tìm x:
\(\left(4,5-2x\right).1\dfrac{4}{7}=\dfrac{11}{14}\)
Tìm x, biết
a,(2x-4,5)x1 4/7=-11/14
b,|x/7|+6\24
c,60%x+2/3x+1/3.6 1/3
d,|2x-1/3|+5/6=1
Tìm x:
d) \(\dfrac{-5}{6}-x=\dfrac{7}{12}+\dfrac{-1}{3}\)
e) \(\dfrac{x+3}{-15}=\dfrac{1}{3}\)
f) \(\left(4,5-2x\right).\left(-1\dfrac{4}{7}\right)=\dfrac{11}{14}\)
