Bonjour vous pouvez m aider en expression littérale ?Les calcul sont : 7a-a ,6b+12b , 5a - a , 4a+(-a) , 3c -4c , 2c - c , 1a - (b+3c)+b,6a -10a
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bonjour
7a-a = 6a 7 choux - 1 chou = 6 choux ...
6b+12b=18b
5a - a et 2c - c tu as compris
4a+(-a) = 4a -a = ...
3c -4c = - c
6a -10a = -4a
1a - (b+3c)+b = a - b - 3c + b = a-3c