p = 8.
The calculation for this equation works out as follows:
4p - 12 = 20
4p = 20 + 12
4p = 32
p = 32 / 4
p = 8
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4p+1 = 10 4p = 10-1 4p = 9 p = 2.25
4p = 32 Therefore, p = 32/4 p = 8
3p - 8 = 13 - 4p : Add 4p to both sides 7p - 8 = 13 : Add 8 to both sides 7p = 21 : Divide both sides by 7 p = 3.
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15 + 3 = 7p - 4p ie 18 = 3p so p = 6