January 2023 2 67 Report
Bonjour je n'arrive pas cet exercice, si vous pouvez m'aider.

Dans chaque cas, le nombre a est-il solution de l'équation proposée ?
a. 2x + 4 = 5x - 7 a = 3/4

b. 3r-5=30-3 a = 23/12

c. * +4=x-7 a = 8

d. 2x+5=2(x+2)+1 a =- 2/3
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