The length and width of a rectangle are 7cm and (x-8)cm respectively. Find the value of 'x' if the area of a rectangle is 42cm^2.

Question

The length and width of a rectangle are 7cm and (x-8)cm
respectively Find the value of 'x' if the area of a rectangle is
42cm2

Anushka Jha · Accepted Answer

l*b=area
7*(x-8)=42
7x-56=42
7x=42+56
7x=98
x=98/7
x=14

The length and width of a rectangle are 7cm and (x-8)cm respectively. Find the value of 'x' if the area of a rectangle is 42cm2.