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Sagot :

BLIBECHIMED1963

Réponse :

a) 13+(x-6)=13-6+x=7+x

b)-5-(4-2x)=-5-4+2x=-9+2x

c) 10-(x+3)+(-3x+6)=10-x-3-3x+6=13-4x

d) (5+2x)-(-7-7x)=5+2x+7+7x=12+9x

e)x-8-(2+4x-(9-5x))=x-8-(2+4x-9+5x)=x-8-2-4x+9-5x=-8x-1

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