Obtain an equivalent system by performing the stated elementary operation on the system. Replace the third...

 

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Obtain an equivalent system by performing the stated elementary operation on the system. Replace the third equation by the sum of itself and -2 times the second equation 82-18 -10 -27 6x + 3y - 8x - 2y + 52- 9x + 4y - 142 = --0 -10-> DDD O - O (Type integers or simplified fractions.) 8-18 6x - 3y- 8x- 2y + 9x 4y - 142 -27 + Obtain an equivalent system by performing the stated elementary operation on the system. Replace the third equation by the sum of itself and -2 times the second equation 82-18 -10 -27 6x + 3y - 8x - 2y + 52- 9x + 4y - 142 = --0 -10-> DDD O - O (Type integers or simplified fractions.) 8-18 6x - 3y- 8x- 2y + 9x 4y - 142 -27 +

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