Answer
The solutions are 4 and 7.
Work Step by Step
Use the zero product property. If the product is 0, one of the factors is zero.
$v-4=0$ OR $v-7=0$ $\longrightarrow$ solve for v using addition property of equality
$v-4+4=0+4$ OR $v-7+7=0+7$
$v=4$ OR $v=7$
