Tìm x
x + 3/4 = 5/4
Tìm x
x - 3/4 = 8/5 x 5/4
\(x-\dfrac{3}{4}=2\)
\(x=2+\dfrac{3}{4}\)
\(x=\dfrac{11}{4}\)
x - 3/4 = 8/5 x 5/4
x - 3/4 = 2
x = 2 + 3/4
x = 11/4
vậy x =...
TÌM
-12 / 25 . ( 3 / 4 + 6 / -11 5 / 6 ) = 0
=> cái vế trong ngoặc là 0.
rồi bạn làm tiếp nha
\(\dfrac{-12}{25}.\left(\dfrac{3}{4}-x+\dfrac{6}{-11}-\dfrac{5}{6}\right)=0\)
\(\dfrac{3}{4}-x+\dfrac{-6}{11}-\dfrac{5}{6}=0\)
\(\dfrac{3}{4}-x+\dfrac{-91}{66}=0\)
\(\dfrac{3}{4}-x=0-\left(\dfrac{-91}{66}\right)\)
\(\dfrac{3}{4}-x=\dfrac{91}{66}\)
\(x=\dfrac{-83}{132}\)
a: Ta có: \(-\dfrac{12}{25}\cdot\left(\dfrac{3}{4}-x+\dfrac{6}{-11}-\dfrac{5}{6}\right)=0\)
\(\Leftrightarrow x+\dfrac{83}{132}=0\)
hay \(x=-\dfrac{83}{132}\)
tìm x
x+4/5=45/5-(3/7+3/5)
`x+4/5=45/5-36/35`
`x+4/5=279/35`
`x=251/34`
32m2 =..............................................dm2
8dm2 25cm2= ...................................cm2
b, tìm x
x + 4/5 = 7/5 1/7 : x = 3/4
1.tìm x
X x 6/7=5/14 X : 2/3=4/9
X-1/4=3/2 X+4/5=8/9
`x xx 6/7=5/14`
`=>x=5/14:6/7`
`=>x=5/14xx7/6`
`=>x=35/84`
`=>x=5/12`
Vậy `x=5/12`
__
`x:2/3=4/9`
`=>x=4/9xx2/3`
`=>x=8/27`
Vậy `x=8/27`
__
`x-1/4=3/2`
`=>x=3/2+1/4`
`=>x=6/4+1/4`
`=>x=7/4`
Vậy `x=7/4`
__
`x+4/5=8/9`
`=>x=8/9-4/5`
`=>x=40/45-36/45`
`=>x=4/45`
Vậy `x=4/45`
\(x\cdot\dfrac{6}{7}=\dfrac{5}{14}\)
\(x\) \(=\dfrac{5}{14}:\dfrac{6}{7}\)
\(x\) \(=\dfrac{5}{12}\)
\(x:\dfrac{2}{3}=\dfrac{4}{9}\)
\(x\) \(=\dfrac{4}{9}\cdot\dfrac{2}{3}\)
\(x\) \(=\dfrac{8}{27}\)
\(x-\dfrac{1}{4}=\dfrac{3}{2}\)
\(x\) \(=\dfrac{3}{2}+\dfrac{1}{4}\)
\(x\) \(=\dfrac{7}{4}\)
\(x+\dfrac{4}{5}=\dfrac{8}{9}\)
\(x\) \(=\dfrac{8}{9}-\dfrac{4}{5}\)
\(x\) \(=\dfrac{4}{45}\)
tìm x
x+1/6=-3/8
-3/7-x=4/5+-2/3
a, \(x + 1/6 = -3/8 \)
\(x = -3/8 - 1/6\)
\(x = -13/24\)
Vậy \(x = -13/24\)
b, \(-3/7 - x = 4/5 - 2/3\)
\(-3/7 - x = 2/15\)
\(x = -3/7 - 2/15\)
\(x = -59/105.\)
Vậy \(x = -59/105\)
x+1/6=-3/8
x=-3/8-1/6
x=-13/24
-3/7-x=4/5+-2/3
-3/7-x=2/15
x=-3/7-2/15
x=-59/105
a) Tính bằng cách thuận tiện
12/15 + 4/3 + 1/4 + 3/4 + 5/3 + 3/15
b) Tìm X
X x 3/4 = 1/6 x 3/5 x 6/5 x 5/3 (MÌNH CẦN GẤP ĐỂ NỘP)
a. \(=\left(\dfrac{12}{15}+\dfrac{3}{15}\right)+\left(\dfrac{4}{3}+\dfrac{5}{3}\right)+\left(\dfrac{1}{4}+\dfrac{3}{4}\right)\\ =1+2+1=4\)
b. \(x\times\dfrac{3}{4}=\dfrac{1\times3\times6\times5}{6\times5\times5\times3}\\ x\times\dfrac{3}{4}=\dfrac{1}{5}\\ x=\dfrac{1}{5}:\dfrac{3}{4}\\ x=\dfrac{4}{15}\)
a.
(12/15+3/15)+(4/3+5/3)+(1/4+3/4)
=1+3+1=5
b.X x 3/4=1/5
X=1/5:3/4
X=4/15
1.tính bằng hai cách
(2/3-4/5)x25 3/4x2/503/4x2/7
2.tìm x
x:2/5=2/3 x:2/3=4/9
tìm x
x-4=26 (40+x)x2=180 (14+5x):2= 3 mũ 5 : 3 mũ 2
\(x-4=26\\ \Leftrightarrow x=30\)
\(\left(40+x\right).2=180\\ \Leftrightarrow40+x=90\\ \Leftrightarrow x=50\)
\(\left(14+5x\right):2=3^5:3^2\\ \Leftrightarrow\left(14+5x\right):2=27\\ \Leftrightarrow14+5x=54\\ \Leftrightarrow5x=40\\ \Leftrightarrow x=8\)
a) x-4=26
x=26+4= 30
b) (40+x)x2=180
40+x=180:2
40+x= 90
x=90-40=50
c) ( 14+5x):2=35: 32
14+5x:2=33=27
14+5x=27x2
14+5x=54
5x=54-14
5x=40
x=8
x-4=26 (40+x).2=180 (14+5.x):2=35:32
x=26+4 40+x= 90 (14+5.x):2=33
x=30 x=90-40 (14+5.x):2=27
x=50 (14+5.x)=27.2
14+5.x=54
5.x=54-14
5.x=40
x=40:5
x=8
tìm x
x-4=26 (40+x)x2=180 (14+5x):2= 3 mũ 5 : 3 mũ 2
vừa hãy thấy gửi rồi mà
Spam à:D?
a) x-4=26
x=26+4= 30
b) (40+x)x2=180
40+x=180:2
40+x= 90
x=90-40=50
c) ( 14+5x):2=35: 32
14+5x:2=33=27
14+5x=27x2
14+5x=54
5x=54-14
5x=40
x=8