Question

The perimeter of the triangle is 7m+8 and two sides are 3m+2 and 2m+11 find third side

Answer 1

the answer is 2m-5.that's all

Answer 2

Let the third side a be X

7m+8=3m + 2 +2m+11+x

7m+8=13+5m+x

7m-5m+8-13=x

2m-5=x