Question

Please help me find DG on the attached diagram. Thanks!

Answer 1

Explanation:

DG=x+20

DG=2x+17+8+2

x+20=2x+27

20=x+27

-7=x

DG=13

Answer 2

DG = 20

Explanation:

We are given a straight line DG with point E and F on it and we are to find the length of DG.

We have
`D E = 2 x + 7`,
`E F = 8`,
`F G = 2` and
`D G = x + 20`.

So we can write it as:

`DG = DE + EF + FG`

`x+20 = 2x+17+8+2`

`2x-x=20-17-8-2`

`x=-7`

Substituting this value of
`x` to find DG:

DG =
`+x+20 = -7+20` = 13