x+x/3+2x+x/3-3=360°
do in step by step explanation
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Answered by
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Answer:
214.5
Step-by-step explanation:
x+x/3+2x+x/3-3=360°
x+2x+x/3+x/3=360°-3
3x+2x/3=357°
3x+2x=357×3
5x=1071
x=1071/5
x=214.5
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