11. 1 + (-1) = (-1) + 1 = 0
12. x + y = y + x
13. (x + y) + z = x + (y + z)
14. 10 (x + y) = 10x + 10y
15. X=X
16. If x=y then y = x
17. If x= y, then x + z = y + z
18. x (y + 2) = xy + xz
19. 7 • 4 = 4 • 7
20. 3 • (4 • 5) = (13 • 4) • 5
☛ʀᴇᴘᴏʀᴛ☚
• Rude Answer=ʀᴇᴘᴏʀᴛ
• Wrong Answer=ʀᴇᴘᴏʀᴛ
• ɴᴏɴsᴇɴse=ʀᴇᴘᴏʀᴛ
• ᴄᴏᴘɪᴇᴅ=ʀᴇᴘᴏʀᴛ
• ɪɴᴄᴏᴍᴘʟᴇᴛᴇ=ʀᴇᴘᴏʀᴛ
➽ʙʀᴀɪɴʟɪᴇsᴛ➽
• Perfect Answer=ʙʀᴀɪɴʟɪᴇsᴛ
• ᴄᴏʀʀᴇᴄᴛ Answer =ʙʀᴀɪɴʟɪᴇsᴛ
• ᴄᴏᴍᴘlᴇte Answer=ʙʀᴀɪɴʟɪᴇsᴛ
