-9v - 6 ≥ 57
Then
For v= -10, it gives -9•-10 - 6 = 84. Yes IS solution
For v= -7, gives -9•-7 - 6 = 57. YES , IS solution
For v= -3, gives -9•-3 - 6 = 21. NO, is NOT solution
For v= 9, it gives -9•9 - 6 = -87. IS NOT solution
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