a) x=\(\dfrac{23}{10}\)
b) u= \(\dfrac{20}{21}\)
a)x-3/2=4/5
x=4/5+3/2
x=23/10
b)3/5 x u = 4/7
u=4/7:3/5
u=20/21
a) \(x-\dfrac{3}{2}=\dfrac{4}{5}\)
\(x=\dfrac{4}{5}+\dfrac{3}{2}\)
\(x=\dfrac{23}{10}\)
b) \(\dfrac{3}{5}\times u=\dfrac{4}{7}\)
\(u=\dfrac{4}{7}\div\dfrac{3}{5}\)
\(u=\dfrac{20}{21}\)