How do I solve this pls help?

The chart below shows the distribution of weeds in yard

What is the value of x? enter your answer in the box. (cm)

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 =