Answer :

Lilith
[tex]7p+12=3p+11 \\ \\7p-3p=11-12\\ \\4p=-1 \ \ /:4\\ \\p=-\frac{1}{4}[/tex]


7p+12=3p+11
12-11=3p-7p
1=-4p
1/-4=p
-0.25=p

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