Question

Tìm x :^{_{\(\dfrac{ }{ }\)}}\(\dfrac{1}{2}\)x -\(\dfrac{3}{4}\)=\(\dfrac{1}{3}\)x +\(1\dfrac{2}{5}\)

Answer 1

Giải:

1/2.x-3/4=1/3.x-1 2/5

1/2.x-1/3.x=7/5+3/4

1/6.x=43/20

      x=43/20:1/6

      x=129/10

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