Question

1. the sum of fifteen and six times a number t is eighty - one. what is the number?

Explanation:

Step1: Translate to equation

$15 + 6t = 81$

Step2: Isolate the term with $t$

$6t = 81 - 15$
$6t = 66$

Step3: Solve for $t$

$t = \frac{66}{6}$

Answer:

$t = 11$