detailed information: The input equation set is: Question solving process:
Multiply both sides of equation (1) by 2, the equation can be obtained: , then add the two sides of equation (5) to both sides of equation (3), the equations are reduced to:
Multiply both sides of equation (1) by 4, the equation can be obtained: , then add the two sides of equation (6) to both sides of equation (4), the equations are reduced to:
Multiply both sides of equation (2) by 2, the equation can be obtained: , then add the two sides of equation (7) to both sides of equation (3), the equations are reduced to:
Multiply both sides of equation (2) by 6, the equation can be obtained: , then subtract both sides of equation (8) from both sides of equation (4), the equations are reduced to:
Divide the two sides of equation (3) by 2, the equation can be obtained: , then add the two sides of equation (9) to both sides of equation (4), the equations are reduced to:
由第(4)方程式可以看出,该方程组无解。
解方程组的详细方法请参阅:《多元一次方程组的解法》 |