Question

The perimeter of a triangle is 28x-7. 2 of the sides are 5x-3 and 12x+8. What is the third

side of the triangle?

Answer 1

11x - 2.2 is length of 3rd side

Explanation:

add (5x - 3) and (12x + 8) to get 17x + 5

subtract 17x + 5 from 28x - 7.2 to get answer of missing side which is 11x - 2.2