( | x | + | 300 | + | 90 | + | 87 | + | 92 | ) | ÷ | 7 | = | 189 2 |
Left side of the equation = | x | × | 1 7 | + | 300 | × | 1 7 | + | 90 | × | 1 7 | + | 87 | × | 1 7 | + | 92 | × | 1 7 |
= | x | × | 1 7 | + | 300 7 | + | 90 7 | + | 87 7 | + | 92 7 |
= | 1 7 | x | + | 569 7 |
1 7 | x | + | 569 7 | = | 189 2 |
1 7 | x | = | 189 2 | − | 569 7 |
1 7 | x | = | 185 14 |
x | = | 185 14 | ÷ | 1 7 |
= | 185 14 | × | 7 |
= | 185 2 | × | 1 |
x | = | 185 2 |
x | = | 92.5 |