Question

3 từ thôi" rất là gấp"

Answer 1

a)\(2x=\dfrac{15}{7}-\dfrac{1}{7}\\ 2x=2\\ x=2:2\\ x=1\)

b)\(\dfrac{4}{5}-x=\dfrac{1}{5}\\ x=\dfrac{4}{5}-\dfrac{1}{5}\\ x=\dfrac{3}{5}\)

Answer 2

a: \(\Leftrightarrow2x=2\)

hay x=1

Answer 3

\(2x=\dfrac{15}{7}-\dfrac{1}{7}\\ 2x=2\\ x=2:2\\ x=1\)