SOLUTION: An angles supplement is ten less than three times the angle.

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Question 905719: An angles supplement is ten less than three times the angle.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
A%2BS=180
S=3A-10
Substitute,
A%2B%283A-10%29=180
4A-10=180
4A=190
highlight%28A=95%2F2%29
Then,
S=3%2895%2F2%29-10
S=285%2F2-20%2F2
highlight%28S=265%2F2%29