Answer:
27
Step-by-step explanation:
ST=27 <em>(Hope this helps)</em>
RS+ST=100
2x+7+x-6=100
3x+1=100
3x=99
x=33
ST=33-6
ST=27
x = -48.
40 + 4x = 3x - 8
4x - 3x = - 8 - 40
[0. infinity)
[0, infinity)