Question

tìm x trong tỷ lệ thức 

x+11/14-x=2/3

Answer 1

\(\dfrac{x+11}{14-x}=\dfrac{2}{3}\)

⇔\(3\left(x+11\right)=2\left(14-x\right)\)

⇔\(3x+33=28-2x\)

⇔\(5x=-5\)

⇔\(x=-1\)