what is the first step used in solving this equation 2x+9y=28 and 3x-3y=14. Identify the variable that will be solved for when you add these equations

Respuesta :

Answer:

Multiply the second equation's terms by 3. Solve for x.

Step-by-step explanation:

You will get:

2x+9y=28

9x-9y=42

Add them to get:

11x=70.

You can solve from there.

Answer:

a

Step-by-step explanation: