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Vika [28.1K]
2 years ago
11

The triangles shown have the same perimeter. What is the value of x?

Mathematics
1 answer:
olga nikolaevna [1]2 years ago
8 0

Answer:

18

Step-by-step explanation:

Since you know the perimeters are equal, write your equation.

x+6 + x+6 + x+6 = x + x+6 + 2x-6

combine like terms

3x + 18 = 4x

isolate your x by subtracting 3x from each side

18 = x

check your answer:

3x + 18 = 72

4x = 72

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