Question

tìm x,yez biết

a)1/2=x/-4

Answer 1

\(\dfrac{1}{2}=\dfrac{x}{-4}\\ \Rightarrow x=\dfrac{1.\left(-4\right)}{2}=\dfrac{-4}{2}=-2\)

Answer 2

=>x/-4=1/2

hay x=-2

Answer 3

\(a,\dfrac{1}{2}=\dfrac{x}{-4}\\ \Rightarrow1.\left(-4\right)=2.x=-4\\ \Rightarrow2.x=-4\\ \Rightarrow x=-4:2\\ \Rightarrow x=-2\)