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karimdu57
@karimdu57
June 2021
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-2)+(-5-[(-12+(-1)] c) 1-2)+3-2)-(6-7)-(8-7) d) -4+(-5)+[5-(-1)
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droopette
-2)+(-5-[(-12+(-1)]
=-2+(-5-(-12-1))
=-2+(-5-(-13))
=-2+(-5+13)
=-2-5+13
=-7+13
=6
c) 1-2)+(3-2)-(6-7)-(8-7)
=1-2+3-2-6+7-8+7
=0
d) -4+(-5)+[5-(-1)
=-4-5+(5+1)
=-4-5+6
=-9+6
=-3
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karimdu57
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=-2+(-5-(-12-1))
=-2+(-5-(-13))
=-2+(-5+13)
=-2-5+13
=-7+13
=6
c) 1-2)+(3-2)-(6-7)-(8-7)
=1-2+3-2-6+7-8+7
=0
d) -4+(-5)+[5-(-1)
=-4-5+(5+1)
=-4-5+6
=-9+6
=-3