SOLUTION: I need help with this...Please:) I have to find the solution to the system of equations by the substitution method. Check your answers. Place your solution in the form (x,y), (a

Question 145179This question is from textbook Beginning Algebra
: I need help with this...Please:)
I have to find the solution to the system of equations by the substitution method. Check your answers. Place your solution in the form (x,y), (a,b), (p,q), or (s,t).
Page 483
Number 2
x=4-4y
-x+2y=2 This question is from textbook Beginning Algebra

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
The first step in the substitution method is to solve one of the equations for one of the variables in terms of the other(s). That has already been done for you, so the hardest part is over.

If you look carefully at your first equation, you see that you have a statement that is equal to something, namely: . That means you can substitute this something for anywhere you see it in the second equation, thus:

, so .

Solve the derived equation for , and then you can substitute the value you find into either of the given equations in order to solve for .

Once you have the two values, express your answer in the form of an ordered pair (,).

To check your answers, substitute the values for and from your solution into each of the given equations. If you have the correct values for the and coordinates, you will get a true statement in each case.
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