PLEASE PLEASE HELP, I AM TIMED! What is the equation to the function? Explain.

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 =

Write the rational number in lowest terms 99/-15

Interpret the following expression (5y^2-7)^3/(2y)^2