( | ( | 220 | + | 260 | + | 220 | ) | × | 21 | − | x | ) | × | 17 20 | + | ( | 8 | + | 8 | ) | × | 21 | = | ( | 220 | + | 220 | + | 260 | ) | × | 21 | × | 17 20 | + | 8 | × | 21 |
Left side of the equation = | ( | 220 | + | 260 | + | 220 | ) | × | 21 | × | 17 20 | − | x | × | 17 20 | + | ( | 8 | + | 8 | ) | × | 21 |
= | ( | 220 | + | 260 | + | 220 | ) | × | 357 20 | − | x | × | 17 20 | + | ( | 8 | + | 8 | ) | × | 21 |
= | 220 | × | 357 20 | + | 260 | × | 357 20 | + | 220 | × | 357 20 | − | 17 20 | x | + | ( | 8 | + | 8 | ) | × | 21 |
= | 3927 | + | 4641 | + | 3927 | − | 17 20 | x | + | ( | 8 | + | 8 | ) | × | 21 |
= | 12495 | − | 17 20 | x | + | ( | 8 | + | 8 | ) | × | 21 |
= | 12495 | − | 17 20 | x | + | 8 | × | 21 | + | 8 | × | 21 |
= | 12495 | − | 17 20 | x | + | 168 | + | 168 |
= | 12831 | − | 17 20 | x |
12831 | − | 17 20 | x | = | ( | 220 | + | 220 | + | 260 | ) | × | 21 | × | 17 20 | + | 8 | × | 21 |
Right side of the equation = | ( | 220 | + | 220 | + | 260 | ) | × | 357 20 | + | 168 |
12831 | − | 17 20 | x | = | ( | 220 | + | 220 | + | 260 | ) | × | 357 20 | + | 168 |
Right side of the equation = | 220 | × | 357 20 | + | 220 | × | 357 20 | + | 260 | × | 357 20 | + | 168 |
= | 3927 | + | 3927 | + | 4641 | + | 168 |
= | 12663 |
12831 | − | 17 20 | x | = | 12663 |
- | 17 20 | x | = | 12663 | − | 12831 |
- | 17 20 | x | = | - | 168 |
168 | = | 17 20 | x |
17 20 | x | = | 168 |
x | = | 168 | ÷ | 17 20 |
= | 168 | × | 20 17 |
x | = | 3360 17 |
x | = | 197.647059 |