Simplify the expression below - 3 (10x + 4y) + 6 (6x - 2y)

6x - 24y

Step-by-step explanation:

First, eliminate the braces by doing the multiplications:

-30x - 12y + 36x - 12y

Then group together the same variables:

6x - 24y

arguably, you could factor out a 6 and get:

6 (x-4y)

but it is a matter of taste if that is simpler ...