Question

Bài 1 tìm x biết:

49/9 + x - 63/8 = 63/4

Answer 1

49/9 + x - 63/8 = 63/4 

x - 63/8 = 63/4 - 49/9 

x - 63/8 = 371/36 

x = 371/36 + 63/8 

x = 1309/72 

Answer 2

49/9+x  =63/4+63/8

49/9+x  =189/8

        x  =189/8+49/9

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Answer 3

\(\frac{49}{9}+x-\frac{63}{8}=\frac{63}{4}\)

\(\frac{49}{9}+x=\frac{63}{4}+\frac{63}{8}\)

\(\frac{49}{9}+x=\frac{189}{8}\)

\(x=\frac{189}{8}-\frac{49}{9}\)

\(x=\frac{1309}{72}\)