Question

how do you solve this

Answer 1

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x - 3 = 17

• ᴏᴘᴘᴏsɪᴛᴇ sɪᴅᴇs ᴏғ ᴘᴀʀᴀʟʟᴇʟᴏɢʀᴀᴍ ᴀʀᴇ ᴇϙᴜᴀʟ.

x = 17 + 3 = 20 units .

• ᴘᴇʀɪᴍᴇᴛᴇʀ ᴏғ ᴘᴀʀᴀʟʟᴇʟᴏɢʀᴀᴍ = sᴜᴍ ᴏғ ᴀʟʟ sɪᴅᴇs .

ᴘᴇʀɪᴍᴇᴛᴇʀ = 23 + 23 + 17 + 20

—» 83 units .