-(-0,5)-(-1/2) (-21)-(-15) -1,2-[-(-0,8)] 24-(-15)+(-32) Proszę pomocy ... z góry dziękuję ... mam miec to na jutro ... !!!
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=(0,5)+(1/2)(-21)+15-1,2-(0,8)(24)+15-32=1(-21)+13,8-19,2-17=-21+13,8-19,2-17=-43,4
-(-0,5)-(-1/2)= 0,5+0,5 = 1 ( dwa minusy obok siebie dają plus)
(-21)-(-15) = (-21) + 15 = (-6)
-1,2-[-(-0,8)] = -1,2-0,8=-2
24-(-15)+(-32)= 24+15 +(-32)=39+(-32)=(-7)