Firstly, foil 10(p+10) and -5(2p+11): [tex] -11+10p+100=4-10p-55 [/tex]
Next, combine like terms: [tex] 10p+89=-10p-51 [/tex]
Next, add 10p on both sides: [tex] 20p+89=-51 [/tex]
Next, subtract 89 on both sides: [tex] 20p=-140 [/tex]
Next, divide both sides by 20 and your answer will be [tex] p=-7 [/tex]
