Bill has 12 more than three times the number of baseball cards Chyris has. Bill has 42 cards more than Chris. How many baseball cards does Chris have?
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
To find out how many baseball cards Chris has, we can set up an equation based on the given information.
Let's say Chris has x baseball cards.
According to the first statement, Bill has 12 more than three times the number of baseball cards Chris has. Therefore, three times the number of baseball cards Chris has is 3x, and Bill has 12 more than that, which is 3x + 12.
According to the second statement, Bill has 42 cards more than Chris. So we can express Bill's number of cards as x + 42.
Since we know that both equations represent the same amount of cards Bill has, we can set them equal to each other:
3x + 12 = x + 42
Now we need to solve this equation to find x, which represents Chris's number of baseball cards.
Subtract x from both sides of the equation to simplify:
3x - x + 12 = 42
Simplifying further:
2x + 12 = 42
Subtract 12 from both sides:
2x = 42 - 12
2x = 30
Divide both sides by 2:
x = 30 / 2
x = 15
Therefore, Chris has 15 baseball cards.