Here is an example: x + 5 = 5
If you subtract five from both sides, you get x = 0, which is an example of getting 0 as a solution for an equation.
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Some operations cannot be done. For example, if we take the equation x=2/0, there is no result, because division by 0 is not defined.
r=0 is the solution...
An equation that is simplified to 0 0 is called a perfect equation. It usually have exactly one solution.
The equation 3m - 3m - 7 = 0, simplifies to -7 = 0 this means that the the solution is no solution, since -7 doesn't equal 0.
Only a linear equation in one variable x , which is an equation of the form ax + b = 0, (where a is different than 0), has only one solution. The solution is: x = -b/a