A few days ago
Anonymous

Simplifying variable expressions??

How do i simplify variable expressions? Here is an example problem : 3(9k – 4) – 4(5n – 3) How do i solve that? And what are algebra tiles? My teacher has them on our worksheet, but i have no clue how to use them!

Top 1 Answers
A few days ago
Anonymous

Favorite Answer

i dont know what titles are..but

you must distribute

so 3(9k) and then 3(-4)

27k-12

-4(5n) (12)

-20n + 12

27k-12-20n+12

the 12’s cancel

27k-20n

1