Question

Tìm X

X - 5/7 - 35/45 = 3/7

LƯU Ý : KẾT QUẢ PHẢI LÀ PHÂN SỐ TỐI GIẢ

Answer 1

\(x-\frac{5}{7}-\frac{35}{45}=\frac{3}{7}\)

\(x-\frac{5}{7}-\frac{7}{9}=\frac{3}{7}\)

\(x-\frac{7}{9}=\frac{3}{7}+\frac{5}{7}\)

\(x-\frac{7}{9}=\frac{8}{7}\)

\(x=\frac{8}{7}+\frac{7}{9}=\frac{121}{63}\)

Answer 2

\(x-\frac{5}{7}-\frac{35}{45}=\frac{3}{7}\)

\(x-\frac{5}{7}-\frac{7}{9}=\frac{3}{7}\)

\(\frac{-45}{63}-\frac{49}{63}=\frac{3}{7}\)

\(x-\frac{94}{63}=\frac{3}{7}\)

\(x=\frac{94}{63}+\frac{3}{7}\)

\(x=\frac{121}{63}\)