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23-09-2021
Mathematics

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

The triangles shown have the same perimeter What is the value of x class=

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chrisreid1973 chrisreid1973

23-09-2021

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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