Posted by David on Wednesday, August 11, 2010 at 5:46pm.
Chris = X cards
Bill = 3X + 12 cards.
X + (3X +12) = (X + 42) + X
4X - 2X = 42 - 12
2X = 30
X = 15 cards
Chris --x
Bill --- x+42
"Bill has 12 more than three times the number of baseball cards Chyris has" ---> x+42 = 3x + 12
solve
Related Questions
math - bill and anig both have baseball cards. aniq has four times as many cards...
Math - Tom has some baseball cards and football cards. He had four times as ...
3rd Grade Math - Marlon has 4 baseball cards, Jake has 4 baseball cards, and Sam...
Math - Josh has 15 sports cards. He has 3 more baseball cards than basketball ...
math - Trey keeps sports cards in 3 drawers. Each drawer contains exactly 120 ...
math - Josh has 42 more baseball cards than hockey cards. Josh has 136 hockey ...
math - Josh has 42 more baseball cards than hockey cards. Josh has 136 hockey ...
math - In missy's sports-cards collection, 5/7 of the cards are baseball. In...
math - al has twice as many baseball cards as frank and four times as many ...
algebra - Dan has fewer baseball cards than Ethan. If Ethan has 98 baseball ...
For Further Reading