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Hello!
✧･ﾟ: *✧･ﾟ:* *:･ﾟ✧*:･ﾟ✧
❖ The unknown number is 6.
15 - 9 = 6
To find the value of the second expression you can subtract 9 from both sides:
9 - 9 = 0
15 - 9 = 6
Therefore, ? = 6.
~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡
~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ
