Question

[Đặng Thị Ngọc Vân]

2. Tìm x biết:

a) 14,58 - x= -3,72

b) 3/4 + 1/2.x= -5/6

Answer 1

[⭐Hannie⭐]

`a) 14,58 - x= -3,72`

`=> x= 14,58 - ( -3,72)`

`=> x= 14,58+ 3,72`

`=>x=18,3`

`b)3/4 + 1/2.x= -5/6`

`=>  1/2.x= -5/6-3/4`

`=>  1/2.x= -19/12``=>x=-19/12 : 1/2``=>x=-19/12xx2``=>x= -19/6`

Answer 2

[Cihce]

\(a)14,58-x=-3,72\\ x=14,58-\left(-3,72\right)\\ x=14,58+3,72\\ x=18,3\\ b)\dfrac{3}{4}+\dfrac{1}{2}.x=-\dfrac{5}{6}\\ \dfrac{1}{2}.x=-\dfrac{5}{6}-\dfrac{3}{4}\\ \dfrac{1}{2}.x=-\dfrac{19}{12}\\ x=-\dfrac{19}{12}:\dfrac{1}{2}\\ x=-\dfrac{19}{6}.\)