Question

Solve for x and then give the m∠G?



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Answer 1

first the sum of all angles of in triangle is 180 degree.

x+(3x+25)+(x-5)=180

x+3x+25+x-5=180

4x+25+x-5=180

4x+x+25-5=180

5x+20=180

5x=180-20

5x=160

x=32 degree and

the angle of G is 3(32)+25=121 degree