Question

Tìm x biết

4x-(x+1/2)=2x-(1/2-5)

Answer 1

4x-(x+1/2)=2x-(1/2-5)

=> 4x-x-1/2=2x-1/2+5

=> 4x-x-2x=1/2-1/2+5

=> x=5

Vậy...

Answer 2

\(4x-\left(x+\dfrac{1}{2}\right)=2x-\left(\dfrac{1}{2}-5\right)\\ 4x-x-\dfrac{1}{2}=2x+\dfrac{9}{2}\\ \Rightarrow3x-2x=\dfrac{9}{2}+\dfrac{1}{2}\\ \Rightarrow x=5\)