Mathematics
语言：中文
Language:English

current location：Equations > Multivariate equations > Answer
Detailed information：
The input equation set is:
 
7
10
A + 726B + 
3
10
C + 640D = 645    (1)
0 = 0    (2)
0 = 0    (3)
0 = 0    (4)
Question solving process:

The coefficient of the unknown number is reduced to 1, and the equations are reduced to：
 A + 
7260
7
B + 
3
7
C + 
6400
7
D = 
6450
7
    (1)
0 = 0    (2)
0 = 0    (3)
0 = 0    (4)


Therefore, the solution of the equation set is:
A = 
6450
7
 - 
7260
7
B - 
3
7
C - 
6400
7
D


Convert the solution of the equation set to decimals:
A = 921.428571 - 
7260
7
B - 
3
7
C - 
6400
7
D

Where:  B, C, D are arbitrary constants.
解方程组的详细方法请参阅：《多元一次方程组的解法》
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