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HOUDABECHROURI1
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Bon soir j'ai besoin d'aide aidé moi c pour demain merci développer et réduire = a- (-3 a + 5) + ( -3 b + 4)
B = 4 – (6 a – 1) – ( -5 a + 3)
C = 2 a + (a – 5) – (5 -7 a)
D = (8 a -7) + (-5 – 3 a)
E = - (2 t - 5) + (4 a- 8) – (3 a + 2 t)
F = (4 m – 1) – (5 – 3 m) + (2 - 7 m)

Sagot :

VINS

bonjour

a- (-3 a + 5) + ( -3 b + 4)  

=  - 3 a + 5 - 3 b + 4

= - 3 a - 3 b + 9

B = 4 – (6 a – 1) – ( -5 a + 3)

= 4 - 6 a + 1 + 5 a - 3

=  - a - 2

C = 2 a + (a – 5) – (5 -7 a)

=  2 a + a - 5 - 5 + 7 a

=  10 a - 10

D = (8 a -7) + (-5 – 3 a)

=  8 a - 7 - 5 - 3 a

=  5 a - 12

E = - (2 t - 5) + (4 a- 8) – (3 a + 2 t)

= - 2 t  + 5 + 4 a - 8 - 3 a - 2 t

=  a - 4 t  - 3

F = (4 m – 1) – (5 – 3 m) + (2 - 7 m)

=  4 m - 1 - 5 + 3 m + 2 - 7 m

=   - 4

A= a+3a-5-3b+4

  =4a-3B-1

B=4-6a+1+5a-3

  =-a+2

C=2a+a-5-5+7a

 =10a-10

D=8a-7-5-3a

 =5a-12

E=-2t+5+4a-8-3a-2t

  =-4t+a-3

F=4m-1-5+3m+2-7m

  =-4        

                                                           BON COURAGE

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