Question

daxa x este un nr ratonal si 3x-1/2=1 1/2 atunci valoarea lui x este:​

Answer 1

1 1/2 = (1*2+1)/2 = 3/2

(3x-1)/2 = 3/2

3x-1 = 3

3x =  4

x = 4/3

Answer 2

$\it \dfrac{3x-1}{2}=\dfrac{11}{2} \Rightarrow 3x-1=11\Big|_{+1} \Rightarrow3x=12 \Rightarrow x=4$