Question

Can someone please help me

Answer 1

see explanation

Explanation:

(a)

9n =
`(15)/(7)` - 2 ( multiply through by 7 to clear the fraction )

63n = 15 - 14 = 1 ( divide both sides by 63 )

n =
`(1)/(63)`

(b)

`(1)/(3)` = k - 4 ( multiply through by 3 to clear the fraction )

1 = 3k - 12 ( add 12 to both sides )

13 = 3k ( divide both sides by 3 )

`(13)/(3)` = k

(c)

g -
`(2)/(5)` g = 3 ( multiply through by 5 to clear the fraction )

5g - 2g = 15

3g = 15 ( divide both sides by 3 )

g = 5

(d)

`(3)/(7)` w + 2w = 3 ( multiply through by 7 to clear the fraction )

3w + 14w = 21

17w = 21 ( divide both sides by 17 )

w =
`(21)/(17)`