a) \(\dfrac{1}{2}-\left(x+\dfrac{1}{3}\right)=\dfrac{5}{6}\)
\(\Rightarrow x+\dfrac{1}{3}=\dfrac{1}{2}-\dfrac{5}{6}\)
\(\Rightarrow x+\dfrac{1}{3}=\dfrac{3}{6}-\dfrac{5}{6}\)
\(\Rightarrow x+\dfrac{1}{3}=-\dfrac{2}{6}\)
\(\Rightarrow x=-\dfrac{2}{6}-\dfrac{1}{3}\)
\(\Rightarrow x=-\dfrac{2}{3}\)
b) \(\left(\dfrac{3}{8}-\dfrac{1}{5}\right)+\left(\dfrac{5}{8}-x\right)=\dfrac{1}{5}\)
\(\Rightarrow\left(\dfrac{15}{40}-\dfrac{8}{40}\right)+\left(\dfrac{5}{8}-x\right)=\dfrac{1}{5}\)
\(\Rightarrow\dfrac{7}{40}+\left(\dfrac{5}{8}-x\right)=\dfrac{1}{5}\)
\(\Rightarrow\dfrac{5}{8}-x=\dfrac{1}{5}-\dfrac{7}{40}\)
\(\Rightarrow\dfrac{5}{8}-x=\dfrac{1}{40}\)
\(\Rightarrow x=\dfrac{5}{8}-\dfrac{1}{40}\)
\(\Rightarrow x=\dfrac{3}{5}\)
a)x+1/3=1/2-5/6
x=-2/3
Vậy x = -2/3
b) 3/8+5/8-1/5-x=1/5
x=1-1/5-1/5
x=3/5
Vậy x=3/5
a, 1/2 - (x + 1/3 ) = 5/6 b, (3/8 - 1/5) + ( 5/8 - x ) = 1/5
x +1/3 = 1/2 - 5/6 3/8 - 1/5 + 5/8 -x = 1/5
x + 1/3 = -1/3 1 - 1/5 - x = 1/5 x = -2/3 x= 1 - 1/5 - 1/5
x = 3/5
a) \(\dfrac{1}{2}-\left(x+\dfrac{1}{3}\right)=\dfrac{5}{6}\)
\(x+\dfrac{1}{3}=\dfrac{1}{2}-\dfrac{5}{6}\)
\(x=\dfrac{-1}{3}-\dfrac{1}{3}\)
\(x=\dfrac{-2}{3}\)
vậy \(x=\dfrac{-2}{3}\)
b) \(\left(\dfrac{3}{8}-\dfrac{1}{5}\right)+\left(\dfrac{5}{8}-x\right)=\dfrac{1}{5}\)
\(\dfrac{3}{8}+\dfrac{5}{8}-\dfrac{1}{5}-x=\dfrac{1}{5}\)
\(x=1-\dfrac{1}{5}-\dfrac{1}{5}\)
\(x=\dfrac{3}{5}\)
vậy \(x=\dfrac{3}{5}\)
a, \(\dfrac{1}{2}\) - ( x + \(\dfrac{1}{3}\) ) = \(\dfrac{5}{6}\)
\(\dfrac{1}{2}\) - x - \(\dfrac{1}{3}\) = \(\dfrac{5}{6}\)
\(\dfrac{1}{6}\) - x = \(\dfrac{5}{6}\)
- x = \(\dfrac{5}{6}\) - \(\dfrac{1}{6}\)
- x = \(\dfrac{2}{3}\)
x = -\(\dfrac{2}{3}\)
b, ( \(\dfrac{3}{8}-\dfrac{1}{5}\) ) + \(\left(\dfrac{5}{8}-x\right)\) = \(\dfrac{1}{5}\)
\(\dfrac{7}{40}\) + \(\left(\dfrac{5}{8}-x\right)\) = \(\dfrac{1}{5}\)
\(\dfrac{4}{5}-x=\dfrac{1}{5}\)
- x = \(\dfrac{1}{5}-\dfrac{4}{5}\)
- x = -\(\dfrac{3}{5}\)
x = -(-\(\dfrac{3}{5}\))
x = \(\dfrac{3}{5}\)
\(a,\dfrac{1}{2}-(x+\dfrac{1}{3})=\dfrac{5}{6}\)
\(x+\dfrac{1}{3}=\dfrac{1}{2}-\dfrac{5}{6}\)
\(x=-\dfrac{1}{3}-\dfrac{1}{3}\)
\(x=-\dfrac{2}{3}\)
\(b,(\dfrac{3}{8}-\dfrac{1}{5})+(\dfrac{5}{8}-x)=\dfrac{1}{5}\)
\(x=1-\dfrac{1}{5}-\dfrac{1}{5}\)
\(x=\dfrac{3}{5}\)
a) \(\dfrac{1}{2}-\left(x+\dfrac{1}{3}\right)=\dfrac{5}{6}\)
\(x+\dfrac{1}{3}=\dfrac{1}{2}-\dfrac{5}{6}\)
\(x=-\dfrac{1}{3}-\dfrac{1}{3}\)
\(x=-\dfrac{2}{3}\)
b) \(\left(\dfrac{3}{8}-\dfrac{1}{5}\right)+\left(\dfrac{5}{8}-x\right)=\dfrac{1}{5}\)
\(\dfrac{3}{8}+\dfrac{5}{8}-\dfrac{1}{5}-x=\dfrac{1}{5}\)
\(x=1-\dfrac{1}{5}-\dfrac{1}{5}\)
\(x=\dfrac{3}{5}\)
a) 1/2 - ( x + 1/3 ) = 5/6
x +1/3 = 1/2 - 5/6
x + 1/3 = -1/3
x = -1/3 - 1/3
x = -2/3
Vậy x = -2/3
b) ( 3/8 - 1/5 ) + ( 5/8 - x ) = 1/5
7/40 + ( 5/8 - x ) = 1/5
5/8 - x = 1/5 - 7/40
5/8 - x = 1/40
x = 5/8 - 1/40
x = 3/5
Vậy x = 3/5
a/\(\dfrac{1}{2}-\left(x+\dfrac{1}{3}\right)=\dfrac{5}{6}\)
\(x+\dfrac{1}{3}=\dfrac{1}{2}-\dfrac{5}{6}\)
\(x+\dfrac{1}{3}=\dfrac{3}{6}-\dfrac{5}{6}\)
\(x+\dfrac{1}{3}=\dfrac{-1}{3}\)
\(x=\left(\dfrac{-1}{3}\right)-\dfrac{1}{3}\)
\(x=\dfrac{-2}{3}\)
a, x+1/3=1/2-56
x+1/3=-1/3
x=-1/3-1/3
x=-2/3
b,3/8+5/8-1/5-x=1/5
1-1/5-x=1/5
x= 1-1/5-1/5
x=3/5
A, 1/2 - (x + 1/3) = 5/6
1/2 - x - 1/3 = 5/6
1/2 - 1/3 = 5/6 + x
1/6 = 5/6 + x
1/6 - 5/6 = x
-4/6=x
B, (3/8 - 1/5) + (5/8 - x) = 1/5
3/8 - 1/5 + 5/8 - x = 1/5
3/8 - 1/5 + 5/8 = 1/5 + x
3/8 + 5/8 - 1/5 = 1/5 + x
8/8 - 1/5 = 1/5 + x
1 - 1/5 = 1/5 + x
5/5 - 1/5 = 1/5 + x
4/5 = 1/5 + x
4/5 - 1/5 = x
3/5 = x
a)x=\(^{\dfrac{-2}{3}}\)
b)x=\(\dfrac{3}{5}\)
a)\(\dfrac{1}{2}-\left(x+\dfrac{1}{3}\right)=\dfrac{5}{6}\)
\(\dfrac{1}{2}-x-\dfrac{1}{3}=\dfrac{5}{6}\)
\(x=\dfrac{1}{2}-\left(\dfrac{5}{6}+\dfrac{1}{3}\right)\)
\(x=-\dfrac{2}{3}\)
b)\(\left(\dfrac{3}{8}-\dfrac{1}{5}\right)+\left(\dfrac{5}{8}-x\right)=\dfrac{1}{5}\)
\(\dfrac{3}{8}-\dfrac{1}{5}+\dfrac{5}{8}-x=\dfrac{1}{5}\)
\(\dfrac{4}{5}-x=\dfrac{1}{5}\)
\(x=\dfrac{3}{5}\)
a) -(x + 1/3) = 5/6 - 1/2 b) ( 7/40) + ( 5/8-x) = 1/5
-(x + 1/3) = 1/3 7/10 + ( -x=5/8)= 1/5
( x + 1/3) = -1/3 -x+ 5/8= 1/5 - 7/10
x= -1/3 - 1/3 -x+ 5/8= 2/10- 7/10
x= -2/3 -x+ 5/8= -5/10
-x+ 5/8= -1/2
-x= -1/2 - 5/8
-x= -8/16 - 10/16
-x= -18/16
-x= -9/8
-x= 9/8
a/
x = -1/3- 1/3
x = -2/3
b/
x = 1 - 1/5 - 1/5
x = 3/5