x + x+ 3 = y + 6 2x + 3 = y + 6 / y= 2x -3
y + 3 = x +6 // 2x - 3 + 3 = x + 6 // x = 6 , y = 9
Marta = 6 , Luisa = 9
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x + x+ 3 = y + 6 2x + 3 = y + 6 / y= 2x -3
y + 3 = x +6 // 2x - 3 + 3 = x + 6 // x = 6 , y = 9
Marta = 6 , Luisa = 9