hola
-915 X N = R
-915 X 1 = -915
-915 X 2 = -1830
-915 X 3 = -2745
-915 X 4 = -3660
-915 X 5 = -4575
-915 X 6 = -5490
-915 X 7 = -6405
-915 X 8 = -7320
-915 X 9 = -8235
-915 X 10 = -9150
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