56+n+69=69+84+56 n=??
Matematika
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Pertanyaan
56+n+69=69+84+56 n=??
1 Jawaban
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1. Jawaban yuki0aoi
A+B+C = D+E+F
56+n+69 = 69 + 84 + 56
B= (D+E+F) - (A+C)
B= (69+84+56) - (56+69)
B= 209 - 125
B= 84