x17= x
Tính x 17 : ( - x ) 8
A. – x 8
B. x 11
C. – x 9
D. x 9
5692 x17 - 5692 x 6 -5692
tìm x
17-(3+x)+15-|-3|=2+2x
17-(3+x)+15-|-3|=2+2x
17-3-x+15-3=2+2x
26-x=2+2x
-x-2x=2-26
-3x=-24
x=8
Ta có: \(17-\left(3+x\right)+15-\left|-3\right|=2+2x\)
\(\Leftrightarrow17-3-x+15-3-2-2x=0\)
\(\Leftrightarrow-3x+24=0\)
\(\Leftrightarrow-3x=-24\)
hay x=8
149-(35:x+3)x17=13
149 - ( 35 : x + 3 ) x 17 = 13
( 35 : x + 3 ) x 17 = 136
35 : x + 3 = 8
35 : x = 5
x = 7
13x(x-14)=91
(13-x)x17=51
13 . ( x - 14 ) = 91
x - 14 = 91 : 13
x - 14 = 7
x = 14 + 7
x = 21
( 13 - x ) . 17 = 51
13 - x = 51 : 17
13 - x = 3
x = 13 - 3
x = 10
2x 17 + 38 x17 + 31 x 17 + 29 x 17
2 x 17 + 38 x 17 + 31 x 17 + 29 x 17
= 17 x ( 2 + 38 + 31 + 29 )
= 17 x 100
= 1700
2x17+38x17+31x17+29x17
=17x(2+38+31+29)
+17x100
=1700
2 x 17 + 38 x17 + 31 x 17 + 29 x 17
= 17 x ( 2 + 38 + 31 + 29 )
= 17 x 100
= 1700
tim X
X x 2/5 + X x17/10=1113/10
Ta có X x 2/5 + X x17/10=1113/10
X x ( 2/5 + 17/10) = 1113/10
X x 21/10 = 1113/10
X = 1113/10 : 21/10
X = 53
Ta có X x 2/5 + X x17/10=1113/10
X x ( 2/5 + 17/10) = 1113/10
X x 21/10 = 1113/10
X = 1113/10 : 21/10
X = 53
tìm x
17/9 - x = 5/7 : 15/28
help meeeeeeeee
\(\dfrac{17}{9}-x=\dfrac{4}{3}\)
\(x=\dfrac{17}{9}-\dfrac{4}{3}\)
\(x=\dfrac{5}{9}\)
`17/9 - x = 5/7 : 15/28`
`=> 17/9 - x = 5/7 xx 28/15`
`=> 17/9 -x = 4/3`
`=> x = 17/9 - 4/3`
`=> x = 17/9 - 12/9`
`=> x = 15/9`
`=> x = 5/3`
tìm x
17/2 : x = 5
x-3/8 =2+1/4
`17/2 \div x=5`
`x=17/2 \div 5`
`x=17/10 = 1,7`
`----`
`x-3/8=2+1/4`
`x-3/8=9/4`
`x=9/4+3/8`
`x=21/8`
`\color{blue}\text {#DuyNam}`
\(\dfrac{17}{2}:x=5\)
\(x=\dfrac{17}{2}:5=\dfrac{17}{2}\times\dfrac{1}{5}\)
\(x=\dfrac{17}{10}\)
_____________________________
\(x-\dfrac{3}{8}=2+\dfrac{1}{4}\) \(=\dfrac{8}{4}+\dfrac{1}{4}\)
\(x-\dfrac{3}{8}=\dfrac{9}{4}\)
\(x=\dfrac{9}{4}+\dfrac{3}{8}=\dfrac{18}{8}+\dfrac{3}{8}\)
\(x=\dfrac{21}{8}\)
`17/2:x=5`
`x=17/2:5`
`x=17/10`
Vậy `x=17/10`
___________________
`x-3/8=2+1/4`
`x-3/8=9/4`
`x=9/4+3/8`
`x=21/8`
Vậy `x=21/8`
`@Nae`
Tìm x ≠ 0 sao cho:
a. x 5 < 4 5
b. x 17 < 2 17