Question

tìm y biết  (y - 5)-(y-5)+yx5-y:5=5 giúp mik vói =((

Answer 1

\(\left(y-5\right)-\left(y-5\right)+y\cdot5-y:5=5\)

=>\(5y-0,2y=5\)

=>4,8y=5

=>\(y=\dfrac{25}{24}\)

Answer 2

\((y-5)-(y-5)+y\times5-y:5=5\\y\times5-y:5=5\\y\times5-y\times \dfrac{1}{5}=5\\y\times\bigg(5-\dfrac{1}{5}\bigg)=5\\y\times\dfrac{24}{5}=5\\y=5:\dfrac{24}{5}\\y=\dfrac{25}{24}\)