The value we don't know is called a _______

_____ means finding a value for the variable that makes the sentence true.

A square has four corners

6 is less than 5

−3 is a negative number

A triangle has n sides

z is a positive number

3y = 4x + 2

a + b = c + d

where mathematicians and scientists have decided that particular symbols will have particular meaning.

this is the _____ in which we are working, or the particular topics being studied

≠ which means ‘is not equal to

≈ which means

≥ which means

≤ which means

value of pi

(α) what greek letter is this

this greek letter is (β)?

θ is what?