1. 9+7y+8y-y+5y 2. 3x+15y-2x-20y
3. 9x+7x-5x+2x
4. 10x-4x+x-6x+5
5. 0,3a-0,2a-0,7a+0.2a
6. -0,8c-4k+0.9c+0,1+3k
7. 2n+(3k+4n-(k-7n)
8. 2n+(3n+4n)-(k-7n)
9. 4(5-6x)+4(-3x+8)
10.3(2k-4c)-(-6k+c)
11.-10(7x-1)+5(6-4x)
12. (7c-5)+2(60-4)

SForest    3   22.12.2020 18:25    1