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 = 75 + 2

x = 77

X = 77 , Y = 75

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