Résoudre les équations suivantes : a. x + 21,5 = -32,6
b. 7x + 4,2 = 0
c. 3.x +4,2=7,2
d. -2x+4=3
,,,,,,3. ,,3
e.
7x- 3 =1
12,,4 ,,,6
f. 3x + 7 - 2x + 8 = 7x-8

aidez moi svp je repost ma question 2 foi elle s eface​
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