Question

Q7. When 3 is subtracted from length and breadth of the rectangle, the perimeter becomes 30.What is the mathematical form of the statement?

a. x - y = 8
b. x + y = 21
c. x + y = 23
d. x - y = 9

anewer quickly please​​

Answer 1

Step-by-step explanation:

As Perimeter of rectangle =2(l+b)Let original length & bredth of rectangle be L & B⇒ 2(L−5+B−5)=26⇒ 2(L+B−10)=26⇒ 2(L+B)=46⇒ L+B=23

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