math  algebra
posted by Denise .
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:
thirtysix plus a negative twentyeight plus negative sixteen plus twentyfour.
when adding numbers, the elementary rule is to add like signed numbers
36+ 24 = 60
2816=  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
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