Bonjour aidez moi svp et merci beaucoup ​

Réponse:

Bonjour,

ex 1

a) 2x + 3x = (2+3) x = 5x

b) 3x-2x = (3-2) x = 1x = x

c) 5x + 3x - 5x = (5+3-5) x = 3x

d) 4x - 3x + 2x = (4-3+2) x = 3x

ex 2

a) 2x + 3 + 3x + 4 = (2+3) x + (3+4) = 5x + 7

b) 3 + 4x + 5 + 3x = (4+3) x + (3+5) = 7x + 8

c) 2x + 5 + x - 2 = (2+1)x + (5-2) = 3x + 3

d) 6x + 4 - 2x + 3 = (6-2)x + (4+3) = 4x + 7