60 | ÷ | 20 | × | ( | 30 | + | t | ) | = | 80 | ÷ | 40 | × | t |
Left side of the equation = | 3 | ( | 30 | + | t | ) |
3 | ( | 30 | + | t | ) | = | 80 | ÷ | 40 | × | t |
Left side of the equation = | 3 | × | 30 | + | 3 | t |
= | 90 | + | 3 | t |
90 | + | 3 | t | = | 80 | ÷ | 40 | × | t |
Right side of the equation = | 2 | t |
90 | + | 3 | t | = | 2 | t |
3 | t | − | 2 | t | = | - | 90 |
t | = | - | 90 |
t | = | - | 90 |