please help with my question its in desription box

Question

a perimeter of a rectangle is 8(2x+1) inches. The length of the sides of a rectangle are 3x+4 inches and 4x+3 inches. Write and solve an equation to find the length of each side of the rectangle

Answer 1

P=2l+2w

8(2x+1)=2(3x+4)+2(4x+3)

16x+8=6x+8+8x+6

16x+8=14x+14

16x-14x=14-8

2x=6

x=3 inches

3x+4=3*3+4=9+4=13 inches

4x+3=4*3+3=12+3=15 inches