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01-10-2020
Mathematics

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4. The side lengths of a triangle are x, x – 9, and 2x + 3. If the perimeter of the triangle is 46 cm, what is the value of x?
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Respuesta :

01-10-2020

Answer:

x=13

Step-by-step explanation:

perimeter equals the sum of sides of triangle

perimeter= x+x-9+2x+3

46=4x-6

46+6=4x

4x=52

x=52/4

x=13

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