A robot can complete 5 tasks in hour. Each task takes the same amount of time. 10
a. How long does it take the robot to complete one task?
b. How many tasks can the robot complete in one hour?

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 =