13/40 =1-(x/(7127))

解答

\frac{13}{40} = 1 - (\frac{x}{7127})

x = \frac{192429}{40}

十进制

x = 4810.725

求解步骤

\frac{13}{40} = 1 - (\frac{x}{7127})

交换两边

1 - (\frac{x}{7127}) = \frac{13}{40}

将

1

到右边

- \frac{x}{7127} = - \frac{27}{40}

在两边乘以

7127

- x = - \frac{192429}{40}

两边除以

- 1

x = \frac{192429}{40}

so l v e f or x, - x + 2 y = - 5

so l v e f or x, x (s) = \frac{5}{( s ( s + 2 ) )}

\frac{33}{100} = 1 - (\frac{x}{7466})

so l v e f or t, t (n) = 3 t (\frac{n}{3}) + o (n)

so l v e f or j, r (t) = 2 t^{3} i + t^{2} j