solvefor x,4x-y=-13

解答

求解

x, 4 x - y = - 13

x = \frac{- 13 + y}{4}

求解步骤

4 x - y = - 13

将

y

到右边

4 x = - 13 + y

两边除以

4

x = \frac{- 13 + y}{4}

so l v e f or x, 5 x - 6 y = 2

\frac{3 x}{2} - \frac{1}{4} (x + 2) = 12 - \frac{2 x + 3}{3}

- \frac{2}{3} (\frac{1}{5} x - \frac{3}{4}) = \frac{1}{2} (- \frac{5}{6} x + \frac{2}{5})

x - 5 = 3 x + 7

0 = - 100000 + 200000 x