Wriye a algebraic expression of 43 less than t

This is the simplest expression

43 < t

you can make it more complex by putting the same operations on both sides of the expression

for example lets multiply (1 - t) on both sides

(1-t) 43 < t (1-t)

foil both sides and you get

43-43t
this is still equal to your original expression 43

T-43 would be your answer