### Home > A2C > Chapter 4 > Lesson 4.2.3 > Problem4-111

4-111.

Is −578 a term in the sequence defined by$t\left(n\right) = −5n + 7$? Justify your answer.

Substitute $−578$ for $t\left(n\right)$.

$−5n + 7 = −578$

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