Sagot :
Hello
E = 12 - 17 - 9 + 10 - 9
= - 13
I = (-5+15)/(12-2)
= ( 10) / 10
= 1
bonne journée
[tex]bonjour\\\\\\E = 12 - 17 - 9 - ( - 10 + 9 ) \\ = 12 - 17 - 9 + 10 - 9 \\ = 22 - 35 \\ = - 13 \\\\I = ( - 5 + 15 ) : ( 12 - 2 )\\ = 10 : 10 \\ = 1 \\\\[/tex]