Friday
December 19, 2014

Homework Help: math - algebra

Posted by Denise on Friday, August 18, 2006 at 8:32pm.

When solving equations by adding integers, what does it mean when one number is in parenthisis? Do you do something different when they are in parenthisis? Example below:

36 + (-28) + (-16) + 24 = y

Thank you


Numbers in parenthesis means the number is what it is. In the example, the number reads NEGATIVE sixteen. The - sign means negative, not minus. Reading the problem yields:
thirty-six plus a negative twenty-eight plus negative sixteen plus twenty-four.

when adding numbers, the elementary rule is to add like signed numbers
36+ 24 = 60
-28-16= - 44

Then subtract, taking the sign of the larger
60- 44= +16
This is the rule we learn in elementary school. Later, we learn we can go left to right with the same process
36 + (-28) + (-16) + 24
36 + (-28)=8
8 -16= -8
-8+ 24= +16

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

6th grade Language Arts - We had a great difference of _______, we finally came...
Math/ Algebra - Give an example of a function using a set of at least 4 ordered ...
Math! - Factoring Completely! 13b^2-13 I got (13b-13)(1b-1). On my test my ...
Business Algebra - Produce an example of a system of equations to your fellow ...
math - Part 1 In your own words, define the word “function.” Give your own ...
math - 1. Select any two integers between -12 and +12 which will become ...
Algebra - Okay, i need help. I'm solving linear equations in intermediate ...
Maths (Simultaneous equations) - You know f(x)= ax˛ + bx + c. Well when you get ...
Math - need to describe 3 different problem solving approaches to this problem, ...
math - Something times something equals 97 Are you supposed to factor 97 as the ...

Search
Members