6 m/((m+222))*100=10,m=7

解答

6 \frac{m}{( m + 222 )} \cdot 100 = 10, m = 7

无解

求解步骤

[6 \cdot \frac{m}{( m + 222 )} \cdot 100 = 10 m = 7]

替代

m = 7

[6 \cdot \frac{7}{7 + 222} \cdot 100 = 10]

化简

[\frac{4200}{229} = 10]

\frac{4200}{229} = 10

为假，因此方程组没有解

无解

4 x + 5 y = 7, 6 x - 7 y = - 4

x + y + z = 6, 2 x - y + 2 z = 3, 3 x + y - z = 3

3 x + 4 y = 10, 2 x - 3 y = - 16

x - 1 = 1, x + y = - 1

3 x - 5 y = 5, 4 x + y = - 1