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-2p+7.
3p+5+p = -23 3p+p = -23-5 4p = -28 p = -7
==>-3p+7=5-8p+6 ==>5p+7=11 ==>5p=4 ==>p=4/5
-14 + 3p = -9p - 21 add 14 and 9p to both sides, then 12p = -7 p = -7/12
If p = 7 then 3p must equal 21. So 21 - 25 = -4 and -4 divided by 2 = -2