Bonjour,
(+5)+(-3) = 2
(+5) + (+4) = 9
+(-7) +(-2) = -9
+(-9) + (+8) = -1
(+6) +(-13) = -7
(+7) +(+12) = 19
+(-5) +(-9) = -14
+(-12) +(+16) = 4
(+17) +(- 0) = 17
(0) +(-15) = -15
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Bonjour,
(+5)+(-3) = 2
(+5) + (+4) = 9
+(-7) +(-2) = -9
+(-9) + (+8) = -1
(+6) +(-13) = -7
(+7) +(+12) = 19
+(-5) +(-9) = -14
+(-12) +(+16) = 4
(+17) +(- 0) = 17
(0) +(-15) = -15