Question

Упрости выражения
а+2а+3b
4s+s+3r+s
3x+2у+x+5у
5q+p+2p+6q
10a+2c+a+3c
2a+5a+4b+2b
7f+g+3g+3f
10p+4q+q+2q
6p+2t+5p+4t

Answer 1

3b+3a
3r+5s
4x+7y
11q+3p
5c+12a
6b+7a
4g+10f
7q+10p
6t+11p