Try another version of this question The Pappas family has two cats, Zeus and Athena. Together they weigh eighteen pounds. Zeus weighs 13 pounds. How much does Athena weigh? Write an algebraic equation that represents the situation, use `a` (Athena's weight) for your variable.
Athena weighs pounds. Box 1: Enter your answer as an equation. Example: y=3x^2+1, 2+x+y=3
Box 2: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Be sure your variables match those in the question `a + 13 = 18`
Enter DNE for Does Not Exist, oo for Infinity 5