Приведите подобные слагаемые:  1) 4а + 5а = 
2) 13а  - 2а = 
3) - 3а + 4а
4) -7а -6а
5) а +8а
Please enter comments
Please enter your name.
Please enter the correct email address.
You must agree before submitting.

Copyright © 2024 SCHOLAR.TIPS - All rights reserved.