Question

alguem pode me ajudar ? t-3(4-t)= -96 s= {-21}

Answer 1

$t-3(4-t)= -96\to\\\\\\ t-12+3t=-96\to \\\\ t+3t=-96+12\to \\\\ 4t=-84\to \\\\ t= \frac{-84}{4} \to \\\\t=-21 \\\\\\S=\left \{-21\left \}$