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Please help, see pic attachment
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Please help, see pic attachment

Please help, see pic attachment-example-1
User Rosalie
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1 Answer

5 votes

Answer:

the answer is 30

Explanation:

because it is an equilateral triangle all sides are the same so if you set 3x+15 equal to 7x-5 and solve for x you get 4x=20 and x= 5

when you plug 5 in to each equation you get 30 for both sides and so it proves that the answer is 30

User Joviano Dias
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