Answer
$t=1$
Work Step by Step
$4(3t+4)-20=3+5t$ $\longrightarrow$distributive property
$12t+16-20=3+5t$ $\longrightarrow$ simplify
$12t-4=3+5t$ $\longrightarrow$addition property
$12t-4-5t+4=3+5t-5t+4$ $\longrightarrow$simplify
$7t=7$ $\longrightarrow$multiplication property
$7t\div7=7\div7$ $\longrightarrow$simplify
$t=1$
