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50°,(2x-10)° and 3×+15)°
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50°,(2x-10)° and 3×+15)°

User Gthmb
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1 Answer

1 vote
50+2x+10+3x+15=180
50-10+15=55
2x+3x=5x
55+5x=180
5x=180-55
5x=125/5
x=25
User Sank
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