SOLUTION: Solve by the addition method. 7x-4y=-3 x+2y=3

Algebra ->  Algebra  -> Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: Solve by the addition method. 7x-4y=-3 x+2y=3      Log On

Ad: You enter your algebra equation or inequality - Algebrator solves it step-by-step while providing clear explanations. Free on-line demo .
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

   

Question 76127This question is from textbook elementary and intermediate algebra
: Solve by the addition method.
7x-4y=-3
x+2y=3This question is from textbook elementary and intermediate algebra

Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
7X-4Y=-3 NOW MULTIPLY THE SECOND EQUATION BY 2 &ADD.
2X+4Y=6
--------------------------------
9X=3
X=3/9
X=1/3 ANSWER.
7*1/3-4Y=-3
7/3-4Y=-3
-4Y=-3-7/3
-4Y=(-9-7)/3
-4Y=-16/3
Y=-16/3*1/4
Y=-16/12
Y=-4/3 ANSWER.