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  • Utilisateur Brainly
2014-06-02T15:28:19+02:00
A) (+8) - (+3)  = 8 - 3 = 5
b) (+23) - (+8) = 23 - 8 = 15
c) (+2) - (-7) = 2 + 7 = 9
d) (+6) - (+7) = 6 - 7 = - 1
e) (-15) - (-12) = - 15 + 12 = - 3
2014-06-02T15:29:25+02:00
(+8) - (+3) = +8 -3 = +5
(+23) - (+8) = +23 -8 = +15
(+2) - (-7) = +2 +7 = +9
(+6) - (+7) = +6 -7 = -1
(-15) - (-12) = -15 +12 = -3