Mathematics
         
语言:中文    Language:English
On line solution of multivariate equations:
    First set the elements of the equation (i.e. the number of unknowns), then click the "Next" button to enter the coefficients of each element of the equation set, and click the "Next" button to obtain the solution of the equation set.
    Note that the coefficients of each element of the equation system can only be numbers, not algebraic expressions (including mathematical functions).
    Current location:Equations > Multivariate equations > Answer
detailed information:
The input equation set is:
 x + y = 
1
5
    (1)
 
787
2
x + 
1234
5
y = 
6353
100
    (2)
Question solving process:

Multiply both sides of equation (1) by 787
Divide the two sides of equation (1) by 2, the equation can be obtained:
         
787
2
x + 
787
2
y = 
787
10
    (3)
, then subtract both sides of equation (3) from both sides of equation (2), the equations are reduced to:
 x + y = 
1
5
    (1)
1467
10
y = 
1517
100
    (2)

Multiply both sides of equation (2) by 10
Divide both sides of equation (2) by 1467, get the equation:
        
163
163
y = 
1517
14670
    (4)
, then add the two sides of equation (4) to both sides of equation (1), get the equation:
 x = 
1417
14670
    (1)
1467
10
y = 
1517
100
    (2)

The coefficient of the unknown number is reduced to 1, and the equations are reduced to:
 x = 
1417
14670
    (1)
 y = 
1517
14670
    (2)


Therefore, the solution of the equation set is:
x = 
1417
14670
y = 
1517
14670


Convert the solution of the equation set to decimals:
x = 0.096592
y = 0.103408

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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