I haven't done math in years, I have no idea what I'm doing wrong
this is one of many problems I'm stuck on:
-6 (x +1) + 4 = 16
I disribute the negative 6 to the ()
-6 (-11x) = 66x
66x=12
x= 12/66
Then I don't do that I get:
-6(2x)+4-4=16-4
-12x=12
x=-1
I've been stuck on this one for hours, I went through the tutorials and everything and I still do not understand.
Ok so I take the -6 and distribute to the ()
and get -6x-6+4=16
is that because of the (x+1) = 1x and 1x multiplied by -6 equals -6x?
then
-6x-6+4=16
-6x-2 + 2 = 16 + 2
-6x = 18
-6x divided by -6 is x and 18 divided by -6 is negative 3
x=-3
so I didn't need to multiply at all? when will I know when to mulitply?
Not quite:
includes TWO terms, and when you distribute anything to something with more than one term you distribute it to all terms, for example, say we wanted to distribute the number 2 to the (x + 1):
What it means to distribute is to multiply each term in the parentheses by what's on the outside:
Now we multiply:
Using this, you can see why:
There you are.