Question

5. The dimensions of a rectangular field are (3x+1) and (x+7) units respectively. Find the area​

Answer 1

3x+1=x+7

3x-x=7-1

2x=6

x=3

put x =3

3x+1=3×3+1=10

x+7= 3+7=10

length = 10

breadth = 10

area of rectangle = l×b

= 10 x 10

= 100unit square

hope this help you