Answer:
P = 10x+2
Step-by-step explanation:
The perimeter of a rectangle is
P = 2(l+w)
the length is 3x+2 and the width is 2x-1
Substituting in
P = 2( 3x+2 + 2x-1)
Combine like terms
P = 2(5x+1)
Distribute the 2