8+9p=9p-7

解答

8 + 9 p = 9 p - 7

无解

求解步骤

8 + 9 p = 9 p - 7

两边减去

9 p

8 + 9 p - 9 p = 9 p - 7 - 9 p

化简

8 = - 7

两侧不相等

无解

\frac{h}{2} + 7 = 10

(m - 2) - 5 = 8 - 2 (m - 4)

so l v e f or x, 6 y = 8 x - 40

- 3.6 = - \frac{a}{0.8} - 1.6

- 0.9 - 3.3 y = - 13.77