detailed information: The input equation set is:
Multiply both sides of equation (1) by 81 Divide the two sides of equation (1) by 121, the equation can be obtained:
Multiply both sides of equation (1) by 49 Divide the two sides of equation (1) by 121, the equation can be obtained:
Multiply both sides of equation (2) by 14 Divide the two sides of equation (2) by 9, the equation can be obtained:
Multiply both sides of equation (3) by 45 Divide both sides of equation (3) by 11, get the equation:
Multiply both sides of equation (3) by 99 Divide both sides of equation (3) by 8, get the equation:
Multiply both sides of equation (2) by 121 Divide both sides of equation (2) by 18, 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:
Convert the solution of the equation set to decimals:
解方程组的详细方法请参阅:《多元一次方程组的解法》 |