16 | × | 16 | + | ( | 10 | + | x | ) | ( | 10 | + | x | ) | = | 10 | × | 10 | + | x | x |
Left side of the equation = | 256 | + | ( | 10 | + | x | ) | ( | 10 | + | x | ) |
256 | + | ( | 10 | + | x | ) | ( | 10 | + | x | ) | = | 10 | × | 10 | + | x | x |
Left side of the equation = | 256 | + | 10 | ( | 10 | + | x | ) | + | x | ( | 10 | + | x | ) |
= | 256 | + | 10 | × | 10 | + | 10 | x | + | x | ( | 10 | + | x | ) |
= | 256 | + | 100 | + | 10 | x | + | x | ( | 10 | + | x | ) |
= | 356 | + | 10 | x | + | x | ( | 10 | + | x | ) |
= | 356 | + | 10 | x | + | x | × | 10 | + | x | x |
= | 356 | + | 20 | x | + | x | x |
356 | + | 20 | x | + | x | x | = | 10 | × | 10 | + | x | x |
Right side of the equation = | 100 | + | x | x |
356 | + | 20 | x | + | x | x | = | 100 | + | x | x |
x= | - | 64 5 |