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Ele - algebra
An open sentence is a sentence which contains a variable. A variable
is simply a letter used to represent a number that is unknown.
Example: n = 7 The variable is the letter n. It can be on any side of a
number sentence.
is simply a letter used to represent a number that is unknown.
Example: n = 7 The variable is the letter n. It can be on any side of a
number sentence.
open sentences
Examples of open sentence
n + 6 = 12" is an open sentence -- the variable is "n."
5 + n = 9 9 = 5 + n
examples:
solving open sentence
To solve an open sentence you can do the opposite operation. For example if it is
an adding problem, you would subtract to find the missing variable.
an adding problem, you would subtract to find the missing variable.
4 + n = 12
12 - 4 = 8
n = 8
4 + 8 = 12
12 - 4 = 8
n = 8
4 + 8 = 12
example: