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An equilateral triangle has a perimeter of 15x +18. What is the length of each side of the triangle?
2 answers
P = 3 a
a = P / 3 = ( 15 x + 18 ) / 3 = 5 x + 6
a = P / 3 = ( 15 x + 18 ) / 3 = 5 x + 6