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Side Length with Expressions
Contributed by: Crowe
4 more than a number
4x
x - 4
x + 4
x ÷ 4
Twice a number
x + 2
2x
x • 2
3x
7 less than a number
x - 7
7x
7 - x 
x + 7
Half a number
2x
x/2
x + 4
6 + x
6 more than 3 times a number
6x + 3
3x + 6
6x - 3
3x - 6
9 more than twice a number
x + 9
2x
2x + 9
9 - 2x
Half a number decreased by 7
x/2 - 7
2x - 7
7 - 2x
7 - x/2
8 times a number increased by 8
x - 8
x + 8
8x
8x + 8 
The length of a rectangle is 3 more than its width.The perimeter is 42 in.
x =           in

Length =         in

Width =         in
Equation
The length of a rectangle is 5 more than the width.
The perimeter is 30 in.
Length:
Width:
x = 
Equation:
in
in
in
The length of a triangle is 3 times the width. 
The perimeter is 32 inches. 
length = 
width = 
x = 
Equation:
in
in
in
The length of a rectangle is 2 more than 3 timesthe width. The perimeter is 60 in
Length:
Width:
x = 
Equation
in
in
in
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