1)-2a-8a+4a+1=
2)-(x+3)+(4-2a)=
3)3(5a-4)-10a=
4)2(7a-b)+5(b-4a)=
5)-(9-2x)-2(x+3)=
6)0,4(8x+7)-1,6(2x-3)=
7)-4x-8*(9-2x)=
8)1/5*(15x-10y)-(3x+2y)=
ПОМОГИТЕ РЕШИТЬ , ЗА МИН 15!!!
СРОЧНО!!
БЛАГОДАРЮ ЗАРАНЕЕ
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