4x + 3 = 11
4x = 11 -3
4x = 8
x =8/4
x =2
answer
the number is 2
Let x be the length and y be the width of a rectangle.
Area = xy
When x and y are doubled
Length = 2x and Width = 2y
Area = 2x x 2y
Area = 4xy
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Answer: When the dimension is doubled, the area is 4 times the original.
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