Question

The breath of a rectangle is 3cm less than the length of rectangle if length is increased by9cm and breath is decreased by 5cm the area remains unchanged find the dimension of the rectangle

Answer 1

B = L-3

AREA = LB

(L+9)(B-5) = LB
LB +9B-5L-45= LB
9B-5L =45
9B -5 (B+3) =45
4B -15=45
B =60/4 =15 CM

L = B+3 = 18 CM

THANK U★★★
#CKC

HOPE IT HELPS