### Home > A2C > Chapter 4 > Lesson 4.2.3 > Problem 4-111

4-111.

Substitute −578 for *t*(*n*).

−5*n* + 7 = −578

Isolate the variable to solve for '*n*'. Is −578 a term?

4-111.

Substitute −578 for *t*(*n*).

−5*n* + 7 = −578

Isolate the variable to solve for '*n*'. Is −578 a term?