Question

X/a+x/b=1
make x the subject of the formular​

Answer 1

x =
`(ab)/(b+a)`

Explanation:

Given

`(x)/(a)` +
`(x)/(b)` = 1

Multiply through by ab to clear the fractions

bx + ax = ab ← factor out x from each term on the left side

x(b + a) = ab ← divide both sides by (b + a)

x =
`(ab)/(b+a)`