There were a total of 107 students and chaperones on a field trip to the museum. If the number of chaperones was thirteen less than seven times the number of students, what is the number of students?
So I'll set up an equation to help solve this, with
The bottom equation is essentially saying that students plus chaperones (which equals 13 less than 7 times the number of students) equals 107 people.
You can remove the parentheses from this equation:
And combine like terms:
And divide both sides by
And to double check:
Meaning that there are