Question

EF = 3x. FG is
three times as long
as EF. EG is 72.
Find FG.

Answer 1

9x

Explanation:

EF = 3x. FG is three times as long as EF.

3 times as long as EF means we need to multiply EF by 3

`FG= 3 times EF`

`FG= 3 \cdot EF`

Now replace EF by 3x

`FG= 3 \cdot EF`

`FG= 3 \cdot 3x`

`FG= 9x`

So FG is 9x

Answer 2

FG = 9x

3x + 9x = 72

12x = 72

x = 6