Respuesta :

lets x is width
length is 4 more than 3 times the width = 3x + 4

2x + 2(3x + 4) = 104
2x + 6x + 8 = 104
8x = 104 -8 
8x = 96
x = 96/8
x = 12

answer: the width of the rectangle is 12 meters

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