Multiply every term in both equations by any number that is not 0 or 1, and has not been posted in our discussion already. Then solve the new system you have created using elimination or substitution method:
6x + 9y = -3
10x - 6y = 58
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You can solve lineaar quadratic systems by either the elimination or the substitution methods. You can also solve them using the comparison method. Which method works best depends on which method the person solving them is comfortable with.
Simultaneous equations can be solved using the elimination method.
The answer depends on whether they are linear, non-linear, differential or other types of equations.
Its harder to solve the equations with grande numbers
There are no disadvantages. There are three main ways to solve linear equations which are: substitution, graphing, and elimination. The method that is most appropriate can be found by looking at the equation.