6) For equations 5x + 3y + 11 = 0 and 2x + 4y =-10 find D. A) 14 B) - 14 C) 26 D) -26
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Step-by-step explanation:
5x + 3y = -11
2x +4y = -10
D = | 5 3 |
| 2 4 |
D = ( 5 × 4 ) - ( 2 × 3 )
D = ( 20 ) - ( 6 )
D = 14
Ans . A ) 14
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