August 2022 2 9 Report

раскройте скобки 1)b+(-7m+2n)   2)-3p-(-5x+2y)   3)-(a-4b)+(-8x+3y)   4)(a--9)-(13-a)+(11-a) решите уравнение 1)-2x+7x=-10 2)3y+(4y-2)=0 3)-(x+6)+3*(x+2)=0 4)2*(y-9)-5*(y-3,6)=27

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