### Home > CCA > Chapter A > Lesson A.1.7 > ProblemA-71

A-71.

Solve this problem by writing an equation. Write your answer with a complete sentence. Let $x =$ the number of adults. Your equation should start with “$1220 =$” and use $x$ as the only variable.

The number of students attending the fall play was $150$ more than the number of adults attending. A total of $1220$ people attended the play. How many students attended the play?

Start by writing an expression that gives the number of students in terms of the number of adults who attended.

$x + 150$

The total number of people who attended the play is all of the adults plus all of the students.

$685$ students