Answer
$(t-5)6=4$
Work Step by Step
From the problem:
"the difference of:" $subtraction$
"the difference of $y$ and five:" $y-5$
"multiplied by 6:" $(subtraction)6$
"is four:" $=4$
Combine:
$(t-5)6=4$
Or (more commonly written like):
$6(t-5)=4$