solvefor d,ab-cd=e

解答

求解

d, ab - c d = e

d = - \frac{e - ab}{c}; c \neq = 0

求解步骤

ab - c d = e

将

ab

到右边

- c d = e - ab

两边除以

- c; c \neq = 0

d = - \frac{e - ab}{c}; c \neq = 0

5 - \frac{2 ( x + 9 )}{3} = \frac{x}{4}

7 - 3 x = 0

6 y + 5 - 7 y = 10 - 2 y + 3

so l v e f or k, g^{- 1} (4 k) = k + 1

5 (a + 3) + 4 a - 5 = - (2 a - 4)