Réduis chaque expression :
a=3a+5+2a-7+8-5a
b= -b+4+3b-2+8b+5
c= 6-5c+3c+4+6c+5+7-2c
d= d-1+3d-4+5-4d+7d-5+5
merci bcp d'avance :)
Réduis chaque expression :
a=3a+5+2a-7+8-5a
b= -b+4+3b-2+8b+5
c= 6-5c+3c+4+6c+5+7-2c
d= d-1+3d-4+5-4d+7d-5+5
merci bcp d'avance :)
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Verified answer
a = 15
b = 10b +7
c= 2c +15
d = 11d