Solve for p
p=1
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p-4=\frac{8.4}{-2.8}
Divide both sides by -2.8.
p-4=\frac{84}{-28}
Expand \frac{8.4}{-2.8} by multiplying both numerator and the denominator by 10.
p-4=-3
Divide 84 by -28 to get -3.
p=-3+4
Add 4 to both sides.
p=1
Add -3 and 4 to get 1.
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