solvefor a,-2a+c=-3

解答

求解

a, - 2 a + c = - 3

a = - \frac{- 3 - c}{2}

求解步骤

- 2 a + c = - 3

将

c

到右边

- 2 a = - 3 - c

两边除以

- 2

a = - \frac{- 3 - c}{2}

3 x + 6 = 39

12 - 2.1 x - 10 + 2 x = 12

so l v e f or y, [d^{3} + 31 d + 240] y = 270 e

so l v e f or a, 16.9 = 5 a + 10 b

so l v e f or x, - 2 y = 3 x + 4