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02-07-2021
Mathematics

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write an equation rectangular room 3 meters longer than it is wide and its perimeter is 18 meters

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ashish4112119 ashish4112119

02-07-2021

width = x

length = 3 + x

perimeter = x + x + ( 3 + x ) + (3+x)

18 = x + x + ( 3 + x ) + (3+x)

x + x + ( 3 + x ) + (3+x) = 18

6 + 4x = 18

4x = 12

x = 3

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