Question

Rezolvati in R ecuatia:
a)1/5(2x-1)=4
b)2/3(4x- 1/3)=1/9 -bara inseamna ca e 2 treimi sau o noime

Answer 1

(2x -1)/5 = 4
2x -1 = 20
2x = 21
x = 21/2

2 (4x -1/3)/3 = 1/9
3.2 (4x - 1/3) = 1
24 x - 2 = 1
24 x = 3
x = 3/24
x = 1/8