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受欢迎的代数 >

49x-57y=17,257x-49y=252

解答

49 x - 57 y = 17, 257 x - 49 y = 252

解答

x = \frac{13531}{12248}, y = \frac{7979}{12248}

求解步骤

[49 x - 57 y = 17 257 x - 49 y = 252]

对于

49 x - 57 y = 17

将

x

移到一边:

x = \frac{17 + 57 y}{49}

替代

x = \frac{17 + 57 y}{49}

[257 \cdot \frac{17 + 57 y}{49} - 49 y = 252]

化简

[\frac{4369 + 12248 y}{49} = 252]

对于

\frac{4369 + 12248 y}{49} = 252

将

y

移到一边:

y = \frac{7979}{12248}

对于

x = \frac{17 + 57 y}{49}

替代

y = \frac{7979}{12248}

x = \frac{17 + 57 \cdot \frac{7979}{12248}}{49}

\frac{17 + 57 \cdot \frac{7979}{12248}}{49} = \frac{13531}{12248}

x = \frac{13531}{12248}

方程组的解为:

x = \frac{13531}{12248}, y = \frac{7979}{12248}

作图

流行的例子

s=+1/2 ,n=5,l=3,m=0

s = + \frac{1}{2}, n = 5, l = 3, m = 0

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x + 3 y = 10, 8 x + y = 11

x-2y=-7,4x+2y=5

x - 2 y = - 7, 4 x + 2 y = 5

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

67x+108y=-417,108x+67y=-458

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