solvefor x,-9x+(36-9(x+y))=0

解答

求解

x, - 9 x + (36 - 9 (x + y)) = 0

x = - \frac{- 4 + y}{2}

求解步骤

- 9 x + (36 - 9 (x + y)) = 0

- 9 x + 36 - 9 (x + y) = 0

将

36

到右边

- 9 x - 9 (x + y) = - 36

乘开

- 9 (x + y) : - 9 x - 9 y

- 9 x - 9 x - 9 y = - 36

\frac{1}{2} \cdot x = - 1

so l v e f or x, 3 x - 2 y - 17 = 0

so l v e f or x, 9 y^{2} - 12 y + 12 x - 68 = 0

5! + 1! = 6!

3 (3 h - 10) = 2 (2 h + 5)