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受欢迎的代数 >

x/(4-3)= y/6 , 1/2 x-y=-2

解答

\frac{x}{4 - 3} = \frac{y}{6}, \frac{1}{2} x - y = - 2

解答

x = \frac{4}{11}, y = \frac{24}{11}

求解步骤

[\frac{x}{4 - 3} = \frac{y}{6} \frac{1}{2} x - y = - 2]

对于

\frac{x}{4 - 3} = \frac{y}{6}

将

x

移到一边:

x = \frac{y}{6}

替代

x = \frac{y}{6}

[\frac{1}{2} \cdot \frac{y}{6} - y = - 2]

化简

[- \frac{11 y}{12} = - 2]

对于

- \frac{11 y}{12} = - 2

将

y

移到一边:

y = \frac{24}{11}

对于

x = \frac{y}{6}

替代

y = \frac{24}{11}

x = \frac{\frac{24}{11}}{6}

\frac{\frac{24}{11}}{6} = \frac{4}{11}

x = \frac{4}{11}

方程组的解为:

x = \frac{4}{11}, y = \frac{24}{11}

作图

流行的例子

2 x + 3 y = 8, x - y = - 1

x+2y-8=2,x+4y=16

x + 2 y - 8 = 2, x + 4 y = 16

sqrt(2x)+sqrt(3y)=0,sqrt(3x)-sqrt(8y)=0

2 x + 3 y = 0, 3 x - 8 y = 0

5 x - 2 y = 4, 3 x + y = 9

4x+5y=6,y=2x-10

4 x + 5 y = 6, y = 2 x - 10