# Word Problems - Algebra.

• Dec 11th 2009, 02:25 PM
deekay930
Word Problems - Algebra.
How would I write this as equation?
1. Solve the following word problem by writing an equation and solving it.
Mary has 5 fewer CDs than Austin. Mary has 14 CDs. How many CDs does Austin have?
• Dec 11th 2009, 02:26 PM
e^(i*pi)
Quote:

Originally Posted by deekay930
How would I write this as equation?
1. Solve the following word problem by writing an equation and solving it.
Mary has 5 fewer CDs than Austin. Mary has 14 CDs. How many CDs does Austin have?

Let x be the amount Mary has and y the amount Austin has

\$\displaystyle x = y-5\$

It is known that \$\displaystyle x=14\$ so \$\displaystyle 14=y-5\$

It should not be hard to see that \$\displaystyle y = 19\$ and therefore Austin has 19 CDs
• Dec 11th 2009, 02:48 PM
deekay930
Quote:

Originally Posted by e^(i*pi)
Let x be the amount Mary has and y the amount Austin has

\$\displaystyle x = y-5\$

It is known that \$\displaystyle x=14\$ so \$\displaystyle 14=y-5\$

It should not be hard to see that \$\displaystyle y = 19\$ and therefore Austin has 19 CDs

thanks so much.