What is this shape? Is it a trapezoid? If not what is it

Which order pair could be removed so that the set of the o

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

How do you determine if an ordered pair is a solution to a given equation?