Each of two congruent sides of an isosceles triangle is 2n + 7 and the third side is 3n. write two equivalent expressions

Comments (4) on “Each of two congruent sides of an isosceles triangle is 2n + 7 and the third side is 3n. write two equivalent expressions”

1. So one way we can do this is- 

   2(2n+7)+3n=

   4n+14+3n=

   7n+14

   Another simpler way possible is-

   2n+7+2n+7+3n=

   RE-ORDER

   2n+2n+3n+7+7=

   COMBINE LIKE TERMS

   7n+14

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2. The perimeter of your isosceles triangle is equal to 7n+14 by combining like terms.

   Hope this helps

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3. P=2(2n+7)+3n

   p=4n+14+3n

   p=7n+14

   p=7(n+2)

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4. The equations could be
   (2n+7)+(2n+7)+3n
   or 2(2n+7)+3n
   When we combined like terms it could be
   4n+14+3n

   2(2n+7)+2(3n) is incorrect because in a triangle there are 3 sides, the measure of two of the sides are 2(2n+7) and the third side is 3n however, he/she put "2(3n)" which would show there are 2 sides with the measure 3n

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