solvefor x, 1/5 x+5/8 y= 41/2

解答

求解

x, \frac{1}{5} x + \frac{5}{8} y = \frac{41}{2}

x = \frac{205}{2} - \frac{25}{8} y

求解步骤

\frac{1}{5} x + \frac{5}{8} y = \frac{41}{2}

将

\frac{5}{8} y

到右边

\frac{1}{5} x = \frac{41}{2} - \frac{5}{8} y

在两边乘以

5

x = \frac{205}{2} - \frac{25}{8} y

(3 n + 15) \cdot x = (2 m - 8)

1.5 x = 3

so l v e f or x, (x + 2 y) + 3 z = x + (2 y + 3 z)

so l v e f or x, \frac{2}{3} \cdot x + \frac{1}{2} \cdot y - \frac{5}{12} = 0

3 x = 2 x + 18