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02-10-2021
Mathematics

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The length of the base of an isosceles triangle is x. The length of a leg is 3x - 7. The perimeter of the triangle is 91. Find X.

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02-10-2021

Step-by-step explanation:

the perimeter =

x + 2(3x-7) = 91

x + 6x -14 = 91

7x -14 = 91

7x = 91+14

7x = 105

x = 105/7

x = 15

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