There is a serious flaw in the "double-equation". 8.6 = 5p - 4p = 2.4 It would imply that 8.6 = 2.4 which is clearly not true.
dude get out!! HandyHelper: It equals your three demensional brain! Ugh dumb questions....
If 3p-5=9-4p then 3p+4p=9+5=14 then 7p=14 and p=14/7 so p=2 Proof: (3 x 2)-5=1 9-(4 x 2)=1
P = 3a - 3qAdd 3q to each side: P + 3q = 3aDouble each side: 6a = 2P + 6q
3p - 8 = 13 - 4p : Add 4p to both sides7p - 8 = 13 : Add 8 to both sides7p = 21 : Divide both sides by 7p = 3.