Question

Câu 2: Tìm y biết rằng: 3y – 30%y = -16

Answer 1

\(3y-30\%y=-16\\ 3y-\dfrac{3}{10}y=-16\\ \dfrac{27}{10}y=-16\\ y=-16:\dfrac{-27}{10}\\ y=\dfrac{-160}{27}\)

Answer 2

 

3y−30%y=−163y−310y=−162710y=−16y=−16:−2710y=−16027