Need help with this one is really confusing.

1.

0.2.21 Show that the statement is true by using properties of the real numbers. 4x(y - 9) = 4xy - 36x Rewrite 4x(y - 9) by multiplying 4x by each term inside the parentheses using the distributive property. Rewrite 4x(y - 9) using this property. 4x(y - 9) = (4x)-(4x) (Type the terms of your expression in the same order as they appear in the original expression.)Solve the inequality. Give your answer in interval notation and indicate the answer geometrically on the real-number line. x+1?1+5x The solution is D. [Simplify your answer. Type your answer in interval notation.)