Ididnt understand anything i mean what is this

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 =

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

What’s -11-33k and factor each expression completely