Question

Giúp mik nha mik cần gấp

Answer 1

a: \(\Leftrightarrow x=\dfrac{1}{9}+\dfrac{5}{7}=\dfrac{52}{63}\)

b: \(\Leftrightarrow x=\dfrac{1}{10}+\dfrac{1}{15}=\dfrac{1}{6}\)

c: \(\Leftrightarrow x=\dfrac{-3}{7}-\dfrac{4}{5}+\dfrac{2}{3}=-\dfrac{59}{105}\)

d: \(\Leftrightarrow x=\dfrac{-2}{15}+\dfrac{3}{10}=\dfrac{1}{6}\)