The length of the base of an isosceles triangle is x. The length of a leg is 4x - 6. The perimeter of the triangle is 51. Find x.

Step-by-step explanation:

if the base=x

length of one leg is =4x-6

length of the other leg is also =4x-6 (isosceles)

P=x+4x-6+4x-6=51

9x-12=51

9x=51+12

9x=63

x=63/9=7

x=7

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