roberta sold fifty tickets for the school play. Roberta sold ten more student tickets than adult tickets. How many tickets did roberta sell?

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To find out how many tickets Roberta sold, we need to set up an equation based on the given information. Let's assume the number of adult tickets sold is "x." According to the problem, Roberta sold ten more student tickets than adult tickets.

So, the number of student tickets sold can be represented as "x + 10."
We also know that Roberta sold a total of fifty tickets.

Therefore, the equation becomes:
x + (x + 10) = 50.

Simplifying the equation:
2x + 10 = 50.
2x = 50 - 10.
2x = 40.

Dividing both sides of the equation by 2:
x = 40 / 2.
x = 20.

So, Roberta sold 20 adult tickets. Now we can find the number of student tickets sold by substituting the value of x back into the equation:
x + 10 = 20 + 10 = 30.

Therefore, Roberta sold 20 adult tickets and 30 student tickets, which sums up to a total of 50 tickets.