Question

The triangles below are similar... find x. plz helpppp!! :)

Answer 1

`x = 11`

Explanation:

Since they are similar, their correspomding side lengths are proportional to each other. Thus:

`(3x + 3)/(x + 7) = (38)/(19)`

`(3x + 3)/(x + 7) = 2`

Cross multiply

`3x + 3 = 2(x + 7)`

`3x + 3 = 2x + 14`

Collect like terms

`3x - 2x = -3 + 14`

`x = 11`