Résoudre les équations :

a 1+(x+13)=-5x b. 3-(y+2)=y+1

c.15+(x+11)2-2x d.8(a-2)=-1a+(5a-8)

e.7-2(3b + 1)=-(4-4b) f.-(3-7x)=-2(5x-1)

Merci d'avance .
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