## Elementary Algebra

$s=70$
Using the properties of equality, the value of the variable that satisfies the given equation, $s=35+0.5s ,$ is \begin{array}{l}\require{cancel} s-0.5s=35 \\\\ 0.5s=35 \\\\ s=\dfrac{35}{0.5} \\\\ s=70 .\end{array}