Answer
y=18
Work Step by Step
Use the vertical angle theorem to write an equation and solve for y.
$3y+20=5y-16\longrightarrow$ vertical angles have the same measure
$3y+36=5y\longrightarrow$ addition property of equality
$36=2y\longrightarrow$ subtraction property of equality
$18=y\longrightarrow$ division property of equality
