3 5 | x | + | 1 2 | x | = | 1 | - | 9 10 | x |
Left side of the equation = | 11 10 | x |
11 10 | x | = | 1 | - | 9 10 | x |
11 10 | x | + | 9 10 | x | = | 1 |
2 | x | = | 1 |
x | = | 1 | ÷ | 2 |
= | 1 | × | 1 2 |
x | = | 1 2 |
x | = | 0.5 |
27 5 | x | = | 729 10 | + | 9 2 | x |
27 5 | x | - | 9 2 | x | = | 729 10 |
9 10 | x | = | 729 10 |
x | = | 729 10 | ÷ | 9 10 |
= | 729 10 | × | 10 9 |
= | 81 | × | 1 |
x | = | 81 |