SG 5 - solution set (5,0) 9.2 [2]-1 4 0 28 9.3...

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9.1 [16] 3x-7y=15; 3x=15+7y therefore X=5+7/3y 3(5+7/3y)+7y=15; 15+14y=15 Y=0 3x+7y=15; 7y=15-3x therefore y=15/7-3x/7 3x-7(15/7-3x/7)=15 3x-15+3x=15 6x=30 therefore x=5
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Unformatted text preview: solution set (5,0) 9.2 [2]-1 4 0 28 9.3 [4]-1*6-(0*(-4)) = -6 9.7 [18] This matrix has 1 row and 1 column; it is a 1x1 matrix...
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