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Explanation & Answer
x = length , y = witdh
x = y + 2
x + y = 152
we use subtitute x = y + 2 ;
so x + y = 152
(y + 2 ) + y = 152
2y + 2 = 152
2y = 152-2
2y = 150
y = 150/2
y = 75
x = y + 2
x = 75 + 2
x = 77
X = 77 , Y = 75
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