1) Solve one of the equations for either variable.
2) Substitute the expression from Step 1 into the other equation.
3) Solve the resulting equation.
4) Substitute the solution in Step 3 into one of the original equations to find the other variable.
5) Write the solution as an ordered pair.
Answer:
-1/2
Step-by-step explanation:
Add up all the numbers & divide by the number of numbers. That should give you the mean.
