Répondre :
bonsoir
chemise = x
pantalon =x + 30
x + x + 30 = 130
2 x = 130 - 30
2 x = 100
x = 50
chemise = 50 € et pantalon = 80 €
bonsoir
chemise = x
pantalon =x + 30
x + x + 30 = 130
2 x = 130 - 30
2 x = 100
x = 50
chemise = 50 € et pantalon = 80 €