How do you simplify 1-(x+4)?

2 Answers
Nov 4, 2014

1 - (x+4)

Ok, so imagine there's a negative one in front of the (x+4) because that's easier to understand. One way to write that would be:

1 - 1 (x+4)

Distribute the negative 1 into the equation by multiplying -1 by both x and 4. This leave you with:

1 - x - 4

Because 1 minus 4 is -3, that leaves you with:

-3 + -x

Nov 7, 2014

A way you can look at this is like this

1-1(x+4)

This is the same as the original question, I just added a "1" before the brackets to indicate that the (x-4) is actually being multiplied by a -1. So by the distributive property, you could distribute that -1 into the brackets to get rid of them and simplify on from there.

So, we have 1-1(x+4)
By distributing the -1, we get: 1-1x-4
Simplifying by addition: -3-1x=-3-x

We could just write this as -3-x since the 1 before the x, although not explicitly shown, is actually there. In the end, you do have ONE x. You don't always have to put the one in when you're distributing the negative into the brackets, but I just showed it there to illustrate the fact that the whole bracket was being multiplied by a -1. You could just distribute the negative sign immediately if you wanted to, if you understand that it's the same as multiplying by a -1.