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solve b*p + (18-b)(p+.5) =26, 18>=b>=0 , b=0 or b =1 or b =2 or b =3 or b =4 or b =5 or b =6 or b =7 or b =8 or b =9 or b =10 or b =11 or b =12 or b =13 or b =14 or b =15 or b =16 or b =17 or b =18
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