x + \(\dfrac{1}{4}\)= \(\dfrac{3}{5}\)- \(\left(-\dfrac{1}{3}\right)\)
=> x +\(\dfrac{1}{4}\)= \(\dfrac{14}{15}\)
=> x = \(\dfrac{14}{15}\) - \(\dfrac{1}{4}\)
=> x = \(\dfrac{41}{60}\)
Chúc bạn học tốt !
BT1: Tìm x, biết:
1) \(\left[\left(\dfrac{1}{2}x-\dfrac{1}{3}\right)^2+\dfrac{1}{4}\right]^3=\dfrac{1}{8}\)
BT1: Tìm x, biết:
6) \(\dfrac{1}{2}.\left(\dfrac{1}{3}x-\dfrac{1}{5}\right)^2-\dfrac{1}{5}=-\dfrac{3}{40}\)
BT1: Tìm x, biết:
5) \(\dfrac{1}{2}+\dfrac{1}{3}< x\le1\dfrac{1}{2}+\dfrac{1}{5}\left(x\in Z\right)\)
BT1: Tính nhanh
2) \(\left(7-\dfrac{4}{3}+\dfrac{1}{3}\right)-\left(6+\dfrac{5}{4}-\dfrac{4}{3}\right)-\left(5-\dfrac{7}{4}+\dfrac{5}{3}\right)\)
BT1: Tìm x, biết:
1) \(\dfrac{1}{3}-\left(1\dfrac{1}{2}-x\right)=0,3\)
BT1: Tìm x, biết:
2) \(0,28-0,3:\left(50\%.x-1\dfrac{1}{3}\right)=-1\dfrac{2}{3}\)
tìm x biết
a) \(\dfrac{1}{2}x+2\dfrac{1}{2}=3\dfrac{1}{2}x-\dfrac{3}{4}\)
b) \(\dfrac{2}{3}x-\dfrac{2}{5}=\dfrac{1}{2}x-\dfrac{1}{3}\)
c) \(\dfrac{1}{3}x+\dfrac{2}{5}\left(x+1\right)=0\)
d) \(\dfrac{2}{3}-\dfrac{1}{3}\left(x-\dfrac{3}{2}\right)-\dfrac{1}{2}\left(2x+1\right)=5\)
e) \(\dfrac{x+2015}{5}+\dfrac{x+2016}{4}=\dfrac{x+2017}{3}+\dfrac{x+2018}{2}\)
BT1: Tìm x, biết:
2) \(9-\left(\dfrac{2}{3}-x\right)=-\dfrac{5}{4}\)
BT1: Tính nhanh:
3) \(\left(\dfrac{1}{3}-\dfrac{1}{4}\right)^2+\left(\dfrac{1}{2}-\dfrac{1}{6}\right)^2+1\dfrac{1}{3}\)
