( | x | − | 10 | ) | + | ( | x | + | 10 | ) | + | x | ÷ | 2 | + | 2 | x | = | 270 |
Left side of the equation = | ( | x | − | 10 | ) | + | ( | x | + | 10 | ) | + | 5 2 | x |
( | x | − | 10 | ) | + | ( | x | + | 10 | ) | + | 5 2 | x | = | 270 |
Left side of the equation = | x | − | 10 | + | ( | x | + | 10 | ) | + | 5 2 | x |
= | 7 2 | x | − | 10 | + | ( | x | + | 10 | ) |
= | 7 2 | x | − | 10 | + | x | + | 10 |
= | 9 2 | x | − | 0 |
9 2 | x | − | 0 | = | 270 |
x | = | 270 | ÷ | 9 2 |
= | 270 | × | 2 9 |
= | 30 | × | 2 |
x | = | 60 |