Tìm x biết x/48=-4/7
a,\(\dfrac{x}{48}\)=\(\dfrac{-4}{7}\) b,(x+\(\dfrac{4}{5}\))-\(\dfrac{2}{5}\)=\(\dfrac{3}{5}\) c, 2\(|\)x-1\(|\)\(^2\)=72 d,\(\dfrac{1}{6}\)x-\(\dfrac{2}{3}\)=2 e,\(\dfrac{x}{2,5}\)=\(\dfrac{4}{5}\)
f,\(|x-2|-4=1\)
Loga
Toán lớp 7
