-(5a-6b)-(4b-3a)-(7a-2b)= -5a+6b-4b+3a-7a+2b= -9a+4b
Пошаговое объяснение:
-(5a-6b)-(4b-3a)-(7a-2b)=
=-5а+6b-4b+3а-7а+2b=
=(-5+3-7)a+(6-4+2)b= -9a+4b
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-(5a-6b)-(4b-3a)-(7a-2b)= -5a+6b-4b+3a-7a+2b= -9a+4b
Пошаговое объяснение:
-(5a-6b)-(4b-3a)-(7a-2b)=
=-5а+6b-4b+3а-7а+2b=
=(-5+3-7)a+(6-4+2)b= -9a+4b