Answer:

Explanation:
Perimeter of the triangle =


Combine like terms


If Bob creates a new triangle whose perimeter is 7 less than twice the perimeter of the given triangle, the expression for the perimeter of the new triangle would be:
Twice of the perimeter = 2(7y + 8)
7 less than twice the perimeter = 2(7y + 8) - 7
Simplify the expression
New perimeter =

=
(distributing 2)

New perimeter
