The length&breadth of a rectangle are (x+5)cm&3cm respectively.Find the length if the area of the rectangle is 42 cm2.

Answer 1

length = x+5 cm
breadth = 3 cm

area = length x breadth

42 cm^2 = 3 cm(x+5 cm)

42 cm^2 = 3x cm + 15 cm^2

now solve for x