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Work: Find the solution of equation 6/(x-3) = (x+2)/6 .
Question type: Equation
Solution:Original question:| | 6 | ÷ | ( | x | − | 3 | ) | = | ( | x | + | 2 | ) | ÷ | 6 |
| Multiply both sides of the equation by: | ( | x | − | 3 | ) |
| | 6 | = | ( | x | + | 2 | ) | ÷ | 6 | × | ( | x | − | 3 | ) |
Remove a bracket on the right of the equation::
| | 6 | = | x | ÷ | 6 | × | ( | x | − | 3 | ) | + | 2 | ÷ | 6 | × | ( | x | − | 3 | ) |
The equation is reduced to :
| | 6 | = | x | × | 1 6 | ( | x | − | 3 | ) | + | 1 3 | ( | x | − | 3 | ) |
Remove a bracket on the right of the equation::
| | 6 | = | x | × | 1 6 | x | − | x | × | 1 6 | × | 3 | + | 1 3 | ( | x | − | 3 | ) |
The equation is reduced to :
| | 6 | = | x | × | 1 6 | x | − | x | × | 1 2 | + | 1 3 | ( | x | − | 3 | ) |
Remove a bracket on the right of the equation::
| | 6 | = | x | × | 1 6 | x | − | 1 2 | x | + | 1 3 | x | − | 1 3 | × | 3 |
The equation is reduced to :
| | 6 | = | x | × | 1 6 | x | − | 1 2 | x | + | 1 3 | x | − | 1 |
The equation is reduced to :
After the equation is converted into a general formula, it is converted into:
( x + 6 )( x - 7 )=0
From
x + 6 = 0
x - 7 = 0
it is concluded that::
x1=-6
x2=7
There are 2 solution(s).
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