Question 1102935
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Let x = how many adults attended.

Notice it is the same as how many adults tickets were sold.

So the number of children attended was (x-20).


8*x + 3*(x-20) = 1260    is your value equation.


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8x + 3x - 60 = 1260  ====>  11x = 1260 + 60 = 1320  ====>  x = {{{1320/11)}}} = 120.


<U>Answer</U>.  120 adults.
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