Question

in the answer
why take 14=2(x+x+1)
why here take 2 times x+x ​

Answer 1

Answer:

solution is given below

Step-by-step explanation:

2x+2x+2=14

2x+2x=14-2=12

4x=12

x=12/4=3

Answer 2

Answer:

beacuse perimeter = 2*(length+breadth)

Step-by-step explanation:

therefore

length = x+1

breadth = x

so when calculating perimeter substitute the following values in the above equation.

so we get.

14 = 2*(x+1 + x )

perimeter = 2*(length + breadth)