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:
 11x -11y = 
7371
200
    (1)
 11x + 12y = 
29351
200
    (2)
Question solving process:

Subtract both sides of equation (1) from both sides of equation (2) ,the equations are reduced to:
 11x -11y = 
7371
200
    (1)
 23y = 
1099
10
    (2)

Multiply both sides of equation (2) by 11
Divide both sides of equation (2) by 23, get the equation:
         11y = 
12089
230
    (3)
, then add the two sides of equation (3) to both sides of equation (1), get the equation:
 11x = 
411313
4600
    (1)
 23y = 
1099
10
    (2)

The coefficient of the unknown number is reduced to 1, and the equations are reduced to:
 x = 
411313
50600
    (1)
 y = 
1099
230
    (2)


Therefore, the solution of the equation set is:
x = 
411313
50600
y = 
1099
230


Convert the solution of the equation set to decimals:
x = 8.128715
y = 4.778261

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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