Bonjour,
l = x
L = x+18
2(l+L) = 2( x+x+18)
= 2(2x+ 18)
= 4x +36
4x+36 = 412
4x = 412- 36 =376
x = 376/4 = 94
l= 94m
L = 94+18 = >112m
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Bonjour,
l = x
L = x+18
2(l+L) = 2( x+x+18)
= 2(2x+ 18)
= 4x +36
4x+36 = 412
4x = 412- 36 =376
x = 376/4 = 94
l= 94m
L = 94+18 = >112m