## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Using the properties of inequality, the given expression, $-1\lt t,$ is equivalent to \begin{array}{l}\require{cancel} -1\lt t \\\\ -t\lt 1 \\\\ -1(-t)\lt -1(1) \\\\ t\gt -1 .\end{array} The inequality above is the same as the other given inequality, $t\gt-1.$ Hence, the given expressions are $\text{ equivalent .}$