February 2021 0 145 Report
Hello aidez moi svp a)
2x-5 =5x+1 ( x est une lettre )
b)
3-7x=3x+2 ( x est une lettre )
c)
5x-6=-x+3 (x est une lettre )
d)
2x-=1 (x est une lettre )
merci d avance
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