What is equivalent variable expression for -9(2x + 12)

Question

Equivalent variable expressions are very difficult for me can soneone please help. 

Answer 1

In your particular problem, you'll want to use the distributive property... taking the -9 and distributing it to both the 2x and the +12...

 

-9(2x + 12) = -9(2x) + -9(12) = -18x - 108

 

Make sense to you?