Question

I Need help!
What is the answer to SU

Answer 1

SU = 24

Explanation:

given T is on the segment SU , then

ST + TU = SU , that is

3x + 2 + 3x + 4 = 5x + 9

6x + 6 = 5x + 9 ( subtract 5x from both sides )

x + 6 = 9 ( subtract 6 from both sides )

x = 3

Then

SU = ST + TU

= 3x + 2 + 3x + 4

= 6x + 6 ( substitute x = 3 )

= 6(3) + 6

= 18 + 6

= 24