SOLUTION: y=3x and x + y=2
answer: 1/2, 3/2
wanted to know how my book got these fractions as answer need full break down
Algebra ->
Systems-of-equations
-> SOLUTION: y=3x and x + y=2
answer: 1/2, 3/2
wanted to know how my book got these fractions as answer need full break down
Log On
answer: 1/2, 3/2
wanted to know how my book got these fractions as answer need full break down Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! (1) and
(2)
There are 2 equations and 2 unknowns. Whenever the
number of unknowns matches the number of equations,
then a solution is possible.
First, subtract from both sides of (1)
(1)
(1)
Now simply add (1) and (2)
(1)
(2)
(3)
(3)
To find , substitute in (1)
(1)
(1)
(1)
The solution is and
