300 | × | 160 | = | ( | 300 | − | 60 | ) | ( | 160 | + | x | ) |
Left side of the equation = | 48000 |
48000 | = | ( | 300 | − | 60 | ) | ( | 160 | + | x | ) |
Right side of the equation = | 300 | ( | 160 | + | x | ) | − | 60 | ( | 160 | + | x | ) |
= | 300 | × | 160 | + | 300 | x | − | 60 | ( | 160 | + | x | ) |
= | 48000 | + | 300 | x | − | 60 | ( | 160 | + | x | ) |
= | 48000 | + | 300 | x | − | 60 | × | 160 | − | 60 | x |
= | 48000 | + | 300 | x | − | 9600 | − | 60 | x |
= | 38400 | + | 240 | x |
48000 | = | 38400 | + | 240 | x |
- | 240 | x | = | 38400 | − | 48000 |
- | 240 | x | = | - | 9600 |
9600 | = | 240 | x |
240 | x | = | 9600 |
x | = | 9600 | ÷ | 240 |
= | 9600 | × | 1 240 |
= | 40 | × | 1 |
x | = | 40 |