ABC is an isosceles triangle with AB = BC. If AB = 3x + 41, BC = 8x – 54, and AC = 12x – 103, find x and the measure of each side.

x = 90

Explanation:

Ab = 3x + 41, BC = 8x - 54, and AC = 12x - 103, find x and the measure of each side.

AC = AB + BC

12x-103 = 3x+41 + 8x-54

12x-103 = 11x - 13

x = 103-13

x = 90

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