Answer:
Okay so let's say they give you an equation like this
2(12) + 24= blank
you would do 2 x 12 which would be 24 and then add another 24 which is 48.
Unless you're talking about variables too like
2(x+2)= 48
2x+4= 48
Subtract 4 on both sides
2x=44
x=22
So it just simplifies things. Hopefully this helps if it doesn't sorry
Explanation: