13 x 9 = 117 (which is £1.17)
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P2 + 13p - 30 = 0 Answer: p= -15, p = 2
7p plus 6p equals 13p. You simply combine the like terms by adding the coefficients (7 and 6) together. Therefore, the equation simplifies to 13p.
p = -12
-31=8-6p-7p -31=8-13p ==add the -6p and the - 7p together -39=13p =======move the 8 over to the other side p=3 =======divide both sides by 13 to get p by itself