Math, asked by SpaceX7, 4 months ago

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Answered by Pakiki
3

a+b=8 , b+c=10, c+a=12

a=8-b, c=10-b, 10-b+8-b=12; 18–2b=12; 6=2b; b=3

a=8–3=5, c-5=12; c=7, 3+7=10

a+b+c= 5+3+7=15

answer 15

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