Solve the system using elimination and describe your steps. be sure to verify your solution. • x = y - 3 2x + y = 12

So these are our two equations:

Before we can use elimination, subtract y on both sides of the first equation:

Now we are able to use elimination. To eliminate the y variable, add the two equations together to get . From here we can solve for x.

For this, just divide both sides by 3 and your first answer will be

Now that we have the value of x, substitute it into either equation to solve for y:

In short, x = 3 and y = 6.

answer: 12

step-by-step explanation:

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set