Answer:
276 guests
Step-by-step explanation:
let the total number of guests be x , then
[tex]\frac{x}{3}[/tex] + [tex]\frac{5x}{12}[/tex] + 69 = x
multiply through by 12 to eliminate the fractions
4x + 5x + 828 = 12x
9x + 828 = 12x ( subtract 9x from both sides )
828 = 3x ( divide both sides by 3 )
276 = x
There are 276 guests at the wedding
