Question

I’m not really sure how to work this out can someone plssss help me

Answer 1

Perimeter of the rectangle=Perimeter of the trapezium

2{(3x+4)+(4x)}=2(5x)+(x-3)+(7x-3)

→2(7x+4)=10x+x-3+7x-3

→14x+8=18x-6

→4x=14

→x=7/2

→x=3.5

The value of x is 3.5 cm