2. Привести подобные 5) b-6a-10b+9a+4b -12b-2a+5b-a =
6) 8x-5-3x+2-x +3x-1+7x =
7) 2a-15-a+1,5x- 5+3x-4 =

3. Раскройте скобки и приведите подобные:
8) 3(X-1)+(X-2)- 2(3X+1)-4(X-2)-3X =
9) 3m-(2m-3)+5n(2-m)-(n+2)+(n-6) =
10) (3y-1)-(2y-2)+(y-3) =
11) m-(2m-6)+3(m-3) m(k-3)-k(m-5)=

ответ: 1) -16b

2) 14x-4

3)a-24+4.5x

3.

1) 3x-3+x-2-6x-2-4x+8-3x=8-2-3-2 - 4x+x-6x = 1-9х

2) 3m-(2m-3)+5n(2-m)-(n+2)+(n-6) = -6m^2-9m+10n+5mn-n-2+n-6 =

-6m^2 -9m +10n +5mn -8

3) (3y-1)-(2y-2)+(y-3) = 3y-1-2y+2+y-3= 2y - 2

4) m-(2m-6)+3(m-3)-m(k-3)-k(m-5)=m-2m^2 -6m + 3m-9-mk+3m-km+5k=

= -2m^2 +m + 5k -9