SOLUTION: I would love someone to help me answer this question. I need to write a equivalent expression to the following without parenthesis. -(z+92) Would someone please explain to me ho

Question 119904: I would love someone to help me answer this question.
I need to write a equivalent expression to the following without parenthesis.
-(z+92) Would someone please explain to me how to do this. Thank you so much for any help given.
Answer by bucky(2189) (Show Source): You can put this solution on YOUR website!
You can view this in a couple of ways.
.
One way is to use the following rules:
.
If a set of parentheses is preceded by a + sign you can just remove the parentheses without
changing the terms inside the parentheses.
.
However, if a set of parentheses is preceded by a - sign you can remove the parentheses
if you also change the signs of the terms inside the parentheses.
.
Or, if the parentheses are preceded by a minus sign, you can view it as a distributed
multiplication by -1.
.
Following the first pair of rules about parentheses for this problem, since the given expression:
.
-(z+92)
.
is preceded by a minus sign, you can remove the parentheses if at the same time you change
the signs of the terms inside the parentheses to get:
.
-z - 92
.
The second way of viewing this problem is to view it as a distributed multiplication
of:
.
-1(z + 92)
.
When you multiply the -1 times each of the terms inside the parentheses, the result is:
.
-1*z + (-1)*92 = -z - 92
.
In either case, the result is the same ... -z - 92
.
Hope one of these ways helps you to understand the problem.
.

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