Question

[Khánh Linh]

BT1: Tìm x, biết:

2) \(9-\left(\dfrac{2}{3}-x\right)=-\dfrac{5}{4}\)

Answer 1

[Đỗ Thanh Hải]

Ta có:

9 - (2/3 - x) = -5/4

2/3 - x = 9 - (-5/4)

2/3 - x = 9 + 5/4

2/3 + x = 41/4

x = 41/4 - 2/3

x = 123/12 - 8/12

x = 115/12