a: x+4/9=19/24
=>x=19/24-4/9=25/72
b: x-5/8=17/12
=>x=5/8+17/12=49/24
\(x+\)\(\dfrac{4}{9}=\dfrac{19}{24}\)
\(x=\)\(\dfrac{19}{24}-\dfrac{4}{9}\)
\(x=\)\(\dfrac{171-96}{216}=\dfrac{75}{216}\)
\(x-\)\(\dfrac{5}{8}=\dfrac{17}{12}\)
\(x=\)\(\dfrac{17}{12}+\dfrac{5}{8}\)
\(x=\)\(\dfrac{136+60}{96}=\dfrac{196}{96}\)
`a)`
`x+4/9=19/24`
`x=19/24-4/9=25/72`
`b)`
`x-5/8=17/12`
`x=5/8+17/12=49/24`
`@An`