Question

Va rog am nevoie urgentă !

Answer 1

$\it \Big[\dfrac{1}{2}\cdot\Big(\dfrac{1}{2}-x\Big)-\dfrac{1}{2}\Big]\cdot(-4)=\dfrac{1}{2} \Rightarrow -2\cdot\Big(\dfrac{1}{2}-x\Big)+2=\dfrac{1}{2} \Rightarrow\\ \\ \\ \Rightarrow-1+2x=\dfrac{1}{2} \Rightarrow 2x=1+\dfrac{1}{2} \Rightarrow 2x=\dfrac{3}{2}\Big|_{:2} \Rightarrow x=\dfrac{3}{4}$