SOLUTION: find the measure of the three angles of a triangle if the second angle is 8 degrees less than three times the first and the third is one degrees more than seven times the first

Question 740771:
find the measure of the three angles of a triangle if the second angle is 8 degrees less than three times the first and the third is one degrees more than seven times the first
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
3F-8=S
T=7F+1
F+S+T=180
F+3F-8+7F+1=180
11F=180+8-1
11F=187
F=187/11
F=17 DEGREES FOR THE FIRST ANGLE.
S=3*17-8
S=51-8
S=43 DEGREES FOR THE SECOND ANGLE.
T=7*17+1
T=119+1
T=120 DEGREES FOR THE THIRD ANGLE.
PROOF:
17+43+120=180
180=180
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