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:
-1x + 
381
250
y = 
381
5
    (1)
-1x + 
3
10
y = 
223
10
    (2)
Question solving process:

Subtract both sides of equation (1) from both sides of equation (2) ,the equations are reduced to:
-1x + 
381
250
y = 
381
5
    (1)
153
125
y = 
539
10
    (2)

Multiply both sides of equation (2) by 127
Divide both sides of equation (2) by 102, get the equation:
        
381
250
y = 
68453
1020
    (3)
, then add the two sides of equation (3) to both sides of equation (1), get the equation:
-1x = 
9271
1020
    (1)
153
125
y = 
539
10
    (2)

The coefficient of the unknown number is reduced to 1, and the equations are reduced to:
 x = 
9271
1020
    (1)
 y = 
13475
306
    (2)


Therefore, the solution of the equation set is:
x = 
9271
1020
y = 
13475
306


Convert the solution of the equation set to decimals:
x = 9.089216
y = -44.035948

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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