Ответ:
(2a-3b) = -2-(-3)=-(2+3)=-5
a/b=-1/-2=|1|/|2|=0.5
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Ответ:
(2a-3b) = -2-(-3)=-(2+3)=-5
a/b=-1/-2=|1|/|2|=0.5
(-2) - (-6)=4