Question

TÌM X

\(\frac{X+3}{2007}-\frac{X+3}{2008}=\frac{X+3}{2015}-\frac{X+3}{2014}\)

Answer 1

\(\frac{X+3}{2007}-\frac{X+3}{2008}=\frac{X+3}{2015}-\frac{X+3}{2014}\)

\(\frac{X+3}{2007}-\frac{X+3}{2008}-\frac{X+3}{2015}+\frac{X+3}{2014}=0\)

\(\left(X+3\right)\left(\frac{1}{2007}-\frac{1}{2008}-\frac{1}{2015}+\frac{1}{2014}\right)=0\)

MÀ \(\frac{1}{2007}-\frac{1}{2008}-\frac{1}{2015}+\frac{1}{2014}\ne0\)

=> X + 3 = 0

=> X = -3 

Answer 2

GIÚP MÌNH VỚI HUHU

Answer 3

\(\frac{x+3}{2007}-\frac{x+3}{2008}=\frac{x+3}{2015}-\frac{x+3}{2014}\)

\(\hept{\begin{cases}x+3=1\\x+3=0\end{cases}\Rightarrow\hept{\begin{cases}x=-2\\x=-3\end{cases}}}\)

Chắc là z k pit nữa