For what value of $t$ does the equation $3x - 2x + 5 - 6 = 9 + t + x$ have infinitely many solutions $x$?
3x - 2x + 5 - 6 = 9 + t + x
x - 1 = 9 + t + x
-1 = 9 + t
-10 = t
+383 
