Question

упростите выражения:
3а+3(7-а)
4а-2(8-2а)
9 (2у-1)-2(5+3у)-(у-8)

Answer 1

3a+21-3a. = 21

4a-16+4a=8a-16


18y-9-10-6y-y+8=11y-11

Answer 2

3а+21-3а=21
4а-16+4а=8а-16
18y-9-10-6y-y+8=11y-1