SOLUTION: solve by elimination method: 9x-9y=9; 7y-3x=-5

Algebra.Com
Question 379755: solve by elimination method: 9x-9y=9;
7y-3x=-5
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!


Hi

solving by elimination method:  

  9x-9y= 9

  7y-3x=-5

 

  9x- 9y  =9

 -9x +21y = -15

      12y = -6

        y = -(1/2)

solving for x

  7y-3x=-5 

  -(7/2) + 5 = 3x 

   3/2 = 3x

   1/2 =  x

CHECKING our answer

 9x-9y= 9/2 - 9(-1/2) = 9/2 + 9/2 = 9

  

RELATED QUESTIONS


solve by elimination method 
9x-9y=9... (answered by drj)

solve by elimination method 
9x-9y=9... (answered by checkley77)

9x-9y=27
7y-3x=-11

Solve by the elimination method..
Solution?
 (answered by scott8148)

solve by elimination method

6x-9y=25.5... (answered by checkley77)

Solve by the elimination method.
9x-9y=18
7y-3x=-8

-3x+7y=-8
9x-9y=18
-3x+7y=-8... (answered by rfer)

Solve by the elimination method

6x-9y=7.5... (answered by Fombitz)

Solve by the elimination method.

9x-9y=27
7y-3x= -11

What is the solution of the... (answered by jojo14344)

elimination method:
9x-9y=36... (answered by sowmya)

Solve by the elimination method. 
6x-9y=7.5
7y-3x=-5
What is the solution to the... (answered by scott8148)