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Subjects
Mathematics State Board
Class 7
Algebra
Addition and Subtraction of Algebraic Expression
14.
Three marks exercise problems III
Exercise condition:
6
m.
1
. Find the
perimeter
of a triangle whose sides are \(x + 3y\), \(2x + y\), \(x - y\).
Answer
:
Perimeter
of a triangle \(=\)
2
. How much
smaller
is \(2ab + 4b - c\) than \(5ab - 3b + 2c\)?
Answer
:
Solution \(=\)
3ab + 7b + 3c
3ab - 7b - 3c
3ab - 7b + 3c
3ab + 7b - 3c
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