An Open Sentence (in Math)
is a math equation
that contains a variable.

Remember:
A "variable" is a number that has yet to be decided.

Examples:

y + 7 = 10
is an Open Sentence

y
is the variable

3
would make the sentence true.

~~~~~~~~~~~~~~~~~~~~~

15 - w = 5
is an Open Sentence

w
is the variable

10
would make the sentence true.

~~~~~~~~~~~~~~~~~~~~~

f x 7 = 28
is an Open Sentence

f
is the variable

4
would make the sentence true.

        Remember:

An Open Sentence
is a math equation
that contains a variable,
and lacks information to make the sentence true.

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