How do you solve the system of equations #3x+2y=12# and #y=x+1#?
1 Answer
Explanation:
In solving systems of linear equations, you can use the elimination method, substitution method or graphing. Using any of these three methods would yield the same answer so it is up to you to choose which method you are most comfortable with. However in this case, I would show both the elimination and substitution method to demonstrate that regardless of the method used, you will arrive with the same solution set.
*graphing will not be done since it is difficult to show graphs using this medium and since it is difficult to determine the exact solutions if the values are not whole numbers
Substitution Method
Since
Substitute the computed value of
Elimination Method
Multiply the second equation by 2 to eliminate
Adding the two equations eliminates the
Substitute the computed value of
Solution Set: