Question

X - 1/2 - 3/4 = 4- 1/2

Answer 1

X - 1/2  - 3/4 = 4- 1/2

<=> X = 4 - 1/2 + 1/2 +3/4

<=> X = 19/4

OK

Answer 2

\(x-\frac{1}{2}-\frac{3}{4}=4-\frac{1}{2}\)

\(x-\frac{1}{2}-\frac{3}{4}=\frac{7}{2}\)

\(x-\frac{1}{2}=\frac{7}{2}+\frac{3}{4}\)

\(x-\frac{1}{2}=\frac{17}{4}\)

\(x=\frac{17}{4}+\frac{1}{2}\)

\(x=\frac{15}{4}\)

Answer 3

X - \(\frac{1}{2}\)-\(\frac{3}{4}\)= 4 -\(\frac{1}{2}\)

X - \(\frac{1}{2}\) -\(\frac{3}{4}\)= \(\frac{7}{2}\)

X -\(\frac{1}{2}\)            = \(\frac{7}{2}\) + \(\frac{3}{4}\)

X - \(\frac{1}{2}\)           = \(\frac{17}{4}\)

X                       =\(\frac{17}{4}\)+ \(\frac{1}{2}\)

X                       =\(\frac{19}{4}\)

nhé bạn

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