\(3-\left(\dfrac{3}{4}+x-\dfrac{1}{2}\right)=\dfrac{1}{2}\)
=>\(3-\dfrac{3}{4}-x+\dfrac{1}{2}=\dfrac{1}{2}\)
=>\(\dfrac{9}{4}-x=0\)
=>\(x=\dfrac{9}{4}-0=\dfrac{9}{4}\)
\(3-\left(\dfrac{3}{4}+x-\dfrac{1}{2}\right)=\dfrac{1}{2}\)
=>\(3-\dfrac{3}{4}-x+\dfrac{1}{2}=\dfrac{1}{2}\)
=>\(\dfrac{9}{4}-x=0\)
=>\(x=\dfrac{9}{4}-0=\dfrac{9}{4}\)
Tìm x :
a, x - 3/2 = 4/3 b, 2/5 * x = 1/3
c, x - 4/9 = 3/7 : 9/14 d, 3/5 * x - 1/2 = 1/5
Bài 1 : tính giá trị của biểu thức
1/2 x 3/4 : 4/5
2/3 + 1/6 - 1/2
3/5 + 4 : 2/3 - 3/2
2 tìm x
x - 1/4 = 1/2
2/3 + x = 1
2/9 nhân x 6/15 : 4/5
3/5 :x = 1/7
Bài 1: Tính
a) 1/3 + 1/5 - 1/4 b) 7/8 - ( 1/4 + 2/5 ) c) 5/11 - ( 3/5 - 6/11 )
Bài 2: Tìm x
a) x + 2/5 = 1/2 b) x + 3/7 = 2/5 + 3/10 c) 19/20 - x = 8/5 - 3/4
Bài 3: Tìm số tự nhiên x, biết:
a ) 4/7 < x < 1/2 + 10/3 b) 3/10 + 8/5 < x < 2/5 + 5
Giúp mình nha ^^ Ai nhanh mình Tick !!!!!!!!!❤❤
Tìm x:
x : 3/4= 9/14 - 1/7
X x 1/2 - X x 1/4 = 2/3
help mình
Tìm x: x : 2/3 = 1/2
A. x=4/5
B. x=4/3
C. x=2/4
D. x= 1/3
bài 3 tìm x :
A ) x + 4/9 = 5/27
b ) x - 4/11= 7/33
c ) 8/5 - x = 1/3 x 2/5
d ) x - 3/4 = 1/2 + 2/6
1) tìm X
X- 3/4 = 1/2
X:1/4=8
X+1/6=5/12
4/5-x =3/10
2/5 : x =1/3
2/7 * x = 2/3
Câu 2: ( 1 điểm)Tìm , biết:
a) 2 - x =3/4 + 5/3 b)3/4 - x = 1 -1/2
1. tìm x
a)1/2+X=5/6 b)X+1/4=3/4
c) 3/10 +X=1/2 d) X+1/4=3/8
2. tính giá trị biểu thức
7/20 -(5/8-2/5) 9/10 - (2/5+3/10)+7/20