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

each of two congruent sides of an isosceles triangle is 2n + 7 and the third side is 3n. write two equivalent expressions for the perimeter, also combine like terms to find the perimeter

## This Post Has 4 Comments

1. nunu7773 says:

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

2. taykola says:

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

Hope this helps

3. 7thaohstudent says:

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

p=4n+14+3n

p=7n+14

p=7(n+2)

4. doggo242 says:

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