\(f,x-4=-\dfrac{2}{7}\\ x=-\dfrac{2}{7}+4\\ x=\dfrac{-2+28}{7}\\ x=\dfrac{26}{7}\\ i,\dfrac{-3}{7}x=\dfrac{1}{6}\\ x=\dfrac{1}{6}:-\dfrac{3}{7}\\x=-\dfrac{7}{18} \)
Đúng 2
Bình luận (0)
\(f,x-4=\dfrac{-14}{35}:\dfrac{7}{5}\)
\(x-4=\dfrac{-14}{35}.\dfrac{5}{7}\)
\(x-4=\dfrac{-2}{7}\)
\(x=\dfrac{-2}{7}+4\)
\(x=\dfrac{26}{7}\)
\(i,\dfrac{-3}{7}x=\dfrac{3}{56}.\dfrac{28}{9}\)
\(\dfrac{-3}{7}x=\dfrac{1}{6}\)
\(x=\dfrac{1}{6}:\dfrac{-3}{7}\)
\(x=\dfrac{1}{6}.\dfrac{-7}{3}\)
\(x=\dfrac{-7}{18}\)
Đúng 1
Bình luận (0)
