ответ: как-то так
Объяснение:
1) 5х-10у=5(1х-2у)
2) 2ах+bx = x(2a+b)
3)- = (7d-1)
4) 100y-50c = 50(2y-c)
5) 8-4+10 = 2(4-2x+5)
18-9+6m = 3m(6-3m+2)
-
= (7d-1)
y-50c = 50(2y-c)-4
+10
= 2(4-2x+5)
-9
+6m = 3m(6-3m+2)
