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Subjects
Mathematics State Board
Class 7
Algebra
Introduction to Algebra
12.
Three marks exercise problems III
Exercise condition:
3
m.
Give an algebraic equation for the following statement:
"
The difference between the area and perimeter of a rectangle is
\(20\)".
Answer
:
Algebraic equation \(=\)
lb - 2(l + b) = 20
lb - l - b = 20
l - b = 20
l - b = 10
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