Answer:
276 guests at the wedding
Explanation:
1. Given
Call the number of guests at the wedding x
of the guests ordered beef,
x ordered beef
of the guests ordered chicken,
x ordered chicken
69 guests ordered vegetarian.
2. Solving
If one were to add up all these values, one would get the total number of guests at the wedding. Hence set up the following equation;
x +
x + 69 = x
Simplify,
- convert fractions to a common denomintor
- reduce fractions
x +
x + 69 = x
x + 69 = x
x + 69 = x
69 = x -
x
69 =
x
*4 *4
276 = x