Question

x + 3/7 = 7/6

12/7 - x = 5/14

Answer 1

a: x+3/7=7/6

=>x=7/6-3/7=49/42-18/42=31/42

b: 12/7-x=5/14

=>x=12/7-5/14=24/14-5/14=19/14

Answer 2

a.\(x+\dfrac{3}{7}=\dfrac{7}{6}\)

\(x=\dfrac{7}{6}-\dfrac{3}{7}\)

\(x=\dfrac{49-18}{42}=\dfrac{31}{42}\)

b.\(\dfrac{12}{7}-x=\dfrac{5}{14}\)

\(x=\dfrac{12}{7}-\dfrac{5}{14}\)

\(x=\dfrac{24-5}{14}=\dfrac{19}{14}\)

 

Answer 3

a \(x=\dfrac{7}{6}-\dfrac{3}{7}\)

\(x=\dfrac{40}{21}\)

b \(x=\dfrac{12}{7}-\dfrac{5}{14}\)

\(x=\dfrac{19}{14}\)