1, ( -2/5 + 3/10 ) : ( 2/-5 + |-4/3 - 2| )
2, 12,5 . -5/7 + 9 3/4 - 1,5 . 5/7
3, -1/4 . -5/13 - 5/4 . -7/13 + 1/1,3
4, ( -3/4 + 5/13 ) : 2/7 - ( 2 1/4 + 8/13 ) : 2/7
5, ( 3 - 3/4 + 2/3 ) - ( 2 - 4/3 - 3/2 ) - ( 1 - 7/3 - 9/2 )
6, -1/3 - 8/35 + -2/9 - 1/135 z+ 4/5 + -4/9 + 3/7
a)|-x+2/5|+1/2=3,5 b)21/5+3:|x/4-2/3|=6
c)7,5-3|5-2x|=-4,5 d)1/3-|5/4-2x|=1/4
e)21/5+3:|x/4-2/3|=6
a)|-x+2/5|+1/2=3,5 b)21/5+3:|x/4-2/3|=6
c)7,5-3|5-2x|=-4,5 d)1/3-|5/4-2x|=1/4
e)21/5+3:|x/4-2/3|=6
Mn ơi, giúp mk vs. Mk cần nó lắm.
a) 6 - |\(1/2\)-x|= 2/5
b) |x+3/5|-1/2=1/2
c)4-|x-1/5|=-1/2
d)|x-2/5|+3/4=11/4
Tính hợp lí
a)\(\dfrac{2-\dfrac{1}{3}+\dfrac{1}{4}}{2+\dfrac{1}{6}-\dfrac{1}{4}}+\dfrac{\dfrac{3}{5}-\dfrac{1}{4}+\dfrac{5}{10}}{\dfrac{1}{2}+\dfrac{3}{4}-\dfrac{2}{5}}\)
b)\(\dfrac{\dfrac{5}{79}+\dfrac{5}{83}+\dfrac{1}{17}}{\dfrac{17}{79}+\dfrac{17}{83}+\dfrac{1}{5}}\)
x+1/2 + x+3/3 +x+1/4 = x+1/5 + x+1/6
Bài 1.Tìm x
a,/x-2014/ +/x-2015/+ /x-2016/=2
b,/x-1/+/x+3/ = 4
c,/2x+3/ -2/4-x/=5
d,/x+3/+/x+1/=3x
e,/x-1/+ /x-2/+...+/x-100/= 2500
f,/x+1/+/x+2/+...+/x+100/= 605x
Bài 2, Tìm x ,y
a,/x-2006y/=/x-2012/< 0
b,/x-1/<4
c,/x-2011/>2012
d, (3x-1)^2016 +(5y -3)^2018 <0
tìm x
a, 3/4 + -1/2x = 1
b, 1/6 :x -1/3 = 1/2
c,(x+1/5)2=9
d,22/9-(x+1/2)2=7/3
e, 2|x|+1/2=2
f,|x+1/2|-1/6=1
giải giúp mình vs mk đang cần gấp
Tìm x biết
a, | 1/2 × x - 3 | = 1/2
b, | 3× x + 1/5 | - 1/3 = 2/3
c, |3× x - 1/5 | + | 15× x - 1 |= 6/2
d, | 1/2 × x - 3 | < 1/2
e, | 3× x - 4/5 | > 1/3