detailed information: The input equation set is: Question solving process:
Subtract both sides of equation (1) from both sides of equation (4) ,the equations are reduced to:
Subtract both sides of equation (2) from both sides of equation (4) ,the equations are reduced to:
Subtract both sides of equation (3) from both sides of equation (4) ,the equations are reduced to:
Divide both sides of equation (4) by 4, get the equation:, then add the two sides of equation (5) to both sides of equation (3), get the equation:
Divide both sides of equation (4) by 3, get the equation:, then add the two sides of equation (6) to both sides of equation (2), get the equation:
Multiply both sides of equation (4) by 5 Divide both sides of equation (4) by 12, get the equation:, then add the two sides of equation (7) to both sides of equation (1), get the equation:
The coefficient of the unknown number is reduced to 1, and the equations are reduced to:
Therefore, the solution of the equation set is:
解方程组的详细方法请参阅:《多元一次方程组的解法》 |