I am refreshing algebra to get ready for calculus and i have a problem and my book doesn't explain it well.
take this equation simplification
-15(x/3) = -5 * 3 * (x * 1/3)
Now, when i distribute the 3 to eliminate the parens, i get
-5 * 3x * 1 = -5 * 3x
the book says thats wrong,
how do you get -5x for the answer? im missing something