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Sagot :

Réponse :

a=1+2-x

=3-x

b=2x-4+5x-6

=7x-10

c=2.6x+4-7x

=4-4.4

d=7-3x+2.4x-5

=2-0.6x

e=5+2x+3

=2x+8

f=5x-3+4x

=9x-3

g=x-4-6

=x-10

h=+3x+1+x-3

=+4x-2

voila j'espere que ça va t'aider

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