Question

Упрости выражения :
h+h+5h+2j
5x+x+t+8t
12a+d+9a+d
4b+(k-b)2
(4+12)a+7c
2s+5s+x+s

Answer 1

7h + 2j
6x + 9t
21a + 2d
4b + 2k - 2b = 2b + 2k
16a + 7c
8s + x  

Answer 2

cpasibo!