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Solve the following system of equations, using the elimination method: 6x - 7y = 15 6x 5y = - 21
Solving by elimination method : ( 6x - 7y = 15 ) - (6x + 5y = - 21) ; -12y = 36 ; y = -3 therefore x ; 6x - 7y =15 ; 6x = 15 + 7 (-3) ; x = -6 /6 ; x = -1 , therefore the final answer is (-1,-3) (answer).
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Asked 3/2/2013 11:30:23 PM
Updated 4/28/2013 1:50:55 AM
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Solving by elimination method :
( 6x - 7y = 15 ) - (6x + 5y = - 21) ;
-12y = 36 ; y = -3 therefore x ; 6x - 7y =15 ; 6x = 15 + 7 (-3) ; x = -6 /6 ; x = -1 , therefore the final answer is (-1,-3) (answer).
Added 4/28/2013 1:50:55 AM
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