Question

"Girardo is employing the given model to solve the equation

3x+1=4x−4.

The model consists of 3 long green tiles and 1 green square tile on one side, which is equal to 4 long green tiles and 4 red square tiles on the other side.

What steps does Girardo take to solve the equation based on this model?"

Answer 1

Girardo takes the following steps to solve the equation 3x+1=4x-4 based on the given model: determine the direction of change, determine x and the equilibrium concentrations, solve for x and the equilibrium concentrations, and finally, checking the math.

Step-by-step explanation:

Girardo is using the given model to solve the equation 3x+1=4x-4. The model represents 3 long green tiles and 1 green square tile on one side, which is equal to 4 long green tiles and 4 red square tiles on the other side.

Girardo takes the following steps to solve the equation based on this model:

1. Determine the direction of change.
2. Determine x and the equilibrium concentrations.
3. Solve for x and the equilibrium concentrations.
4. Check the math.