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Sagot :

Bonsoir,

n

3n

3n+10

3n+10 + 6

= 3n+ +10 +2n

= 5n+10

c)

5(n+2)

n=3

5n+10 => 5*3 + 10 = 15+10 =25

n= -2

5n+10 = 5*-2 +10 = -10 +10 = 0

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