Question

1a. Substitute the value for the variable, and state in a complete sentence

whether the resulting number sentence is true or false. If true, find a value
that would result in a false number sentence. If false, find a value that
would result in a true number sentence.
23 + b = 30. Substitute 10 for b.

Answer 1

False
Because the substitute number need to 7 so you can get 30
False
23+10=33
True
23+7=30