Bonjour,
Prectangle = 2*x + 2(x + 3)
Ptriangle = x + 2*5,1
2*x + 2(x + 3) = x + 2*5,1
2x + 2x + 6 = x + 10,2
4x + 6 = x + 10,2
4x - x = 10,2 - 6
3x = 4,2
x = 4,2/3
x = 1,4
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Bonjour,
Prectangle = 2*x + 2(x + 3)
Ptriangle = x + 2*5,1
2*x + 2(x + 3) = x + 2*5,1
2x + 2x + 6 = x + 10,2
4x + 6 = x + 10,2
4x - x = 10,2 - 6
3x = 4,2
x = 4,2/3
x = 1,4