# SOLUTION: There is an equilateral triangle where each side is 2x-7, x+y-9 and y+5 Calculate the value of x and find the length of the sides of the triangle

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 Click here to see ALL problems on Length-and-distance Question 302671: There is an equilateral triangle where each side is 2x-7, x+y-9 and y+5 Calculate the value of x and find the length of the sides of the triangle Answer by ankor@dixie-net.com(15747)   (Show Source): You can put this solution on YOUR website!There is an equilateral triangle where each side is 2x-7, x+y-9 and y+5 : All side equal, therefore 2x - 7 = x + y - 9 2x - x - y = -9 + 7 x - y = -2 and 2x - 7 = y + 5 2x - y = 5 + 7 2x - y = 12 Subtract the 1st equation from the above equation 2x - y = 12 x - y = -2 ---------------subtraction eliminates y x = 14 find y x - y = -2 14 - y = -2 -y = -2 -14 -y = -16 y = 16 : Find the 3 sides, a, b, c a = 2x-7 a = 2(14) - 7 a = 28 - 7 a = 21 : b = x + y - 9 b = 14 + 16 - 9 b = 21 : c = y + 5 c = 16 + 5 c = 21