\(x+\dfrac{7}{5}=\dfrac{12}{5}\\ x=\dfrac{12}{5}-\dfrac{7}{5}=\dfrac{5}{5}=1\)
Vậy x = 1.
x + \(\dfrac{7}{5}\) = \(\dfrac{12}{5}\)
<=> x = \(\dfrac{12}{5}-\dfrac{7}{5}\)
<=> x = \(\dfrac{19}{5}\)
\(x+\dfrac{7}{5}=\dfrac{12}{5}\)
nên \(x=\dfrac{12}{5}-\dfrac{7}{5}=\dfrac{5}{5}=1\)