Question

Put the steps in order that are used to solve the following systems of equations by substitution.
-7x-2y=-13
x-2y=11

1. _
2. _
3. _
4. _
5. _
6. _
7. _
8. _

Answer 1

1. Solve one of the equations for x or y in terms of the other variable
2. Substitute the expression from step 1 into the other equation and solve for the variable
3. Substitute the value found in step 2 back into the expression from step 1 to determine the other variable
4. Verify the solution by plugging the values of x and y back into both original equations to ensure they work
5. State the solution as a coordinate (x, y) if the system is consistent and independent. Otherwise, state the system is inconsistent or dependent.