20 | ÷ | 135 | + | X | ÷ | 87 | − | ( | 75 | − | X | ) | ÷ | 1000 | = | 119 500 |
Left side of the equation = | 4 27 | + | X | × | 1 87 | − | ( | 75 | − | X | ) | × | 1 1000 |
4 27 | + | 1 87 | X | − | ( | 75 | − | X | ) | × | 1 1000 | = | 119 500 |
Left side of the equation = | 4 27 | + | 1 87 | X | − | 75 | × | 1 1000 | + | X | × | 1 1000 |
= | 4 27 | + | 1 87 | X | − | 3 40 | + | X | × | 1 1000 |
= | 79 1080 | + | 1087 87000 | X |
79 1080 | + | 1087 87000 | X | = | 119 500 |
1087 87000 | X | = | 119 500 | − | 79 1080 |
1087 87000 | X | = | 4451 27000 |
X | = | 4451 27000 | ÷ | 1087 87000 |
= | 4451 27000 | × | 87000 1087 |
= | 4451 9 | × | 29 1087 |
X | = | 129079 9783 |
X | = | 13.194214 |