Respuesta :
n has to be 9 to make this equation true
because 7 * 19 = 133
and 7 * 10 = 70 + 7 * 9 = 63
70 + 63 = 133
so the answer is 9
because 7 * 19 = 133
and 7 * 10 = 70 + 7 * 9 = 63
70 + 63 = 133
so the answer is 9