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A number sentence is a statement of equality between two expressions.
A number sentence is true when both sides are equivalent. It is otherwise false.
Activity: In your notebooks, write the letters a through n. Given the number
sentences below, state whether each one is true or false based on the notes
above. You will have 7 minutes to complete this task...
FALSE
TRUE
FALSE
Answers
FALSE
TRUE
TRUE
TRUE
FALSE
FALSE
FALSE
FALSE
TRUE
FALSE
TRUE
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An algebraic equation is a direct statement of equality. They often contain
symbols or letters (variables) whose values must be determined in order to
complete the truth value of the sentence.
Mathematical analysis can help us determine whether one of the following
three situations is the case:
1. The equation is true for all possible values.
Ex) x = x
2. The equation is true for a specific set of values.
3. The equation is never true for any values.
(do not copy the examples below)
Ex) 2x +5 = 11
Ex) x + 2 = x + 6