Plug it in like any normal algebra
4(11) - 4 < 43
44 - 4 < 43
40 < 43
The statement is correct.
Z = 11 is a solution.
GOLDEN RULE FOR INEQUALITIES
WHENEVER SOLVING AN INEQUALITY TREAT IT LIKE REGULAR ALGEBRA, but whenever you MULTIPLY or DIVIDE both sides of an inequality by a NEGATIVE NUMBER, you must flip the inequality symbol.
