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There are several methods to do this; the basic idea is to reduce, for example, a system of three equations with three variables, to two equations with two variables. Then repeat, until you have only one equation with one variable.
Assuming only two variables, for simplicity:
One method is to solve one of the equations for one of the variables, then replace in the other equation.
Another is to multiply one of the equations by some constant, the other equation by another constant, then adding the resulting equations together. The constants are chosen so that one of the variables disappear.
Specifically for linear equations, there are various advanced methods based on matrixes and determinants.
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What can systems of equations be solved by?
By elimination or substitution
What is a systems of equations that has the same solution set as another system?
They are called equivalent systems.
When are systems of linear equations used?
In coordinated geometry on the Cartesian plane
Can systems of equations with the same slopes and different y-intercepts have no solution?
It is a correct statement.
How can systems of equations be solved?
It depends on your level of expertise. The simplest method is to invert the matrix of coefficients.
How can you use a graph to solve systems of equations?
You can use a graph to solve systems of equations by plotting the two equations to see where they intersect
What is the classification of a system of equations?
The answer will depend on what kinds of equations: there are linear equations, polynomials of various orders, algebraic equations, trigonometric equations, exponential ones and logarithmic ones. There are single equations, systems of linear equations, systems of linear and non-linear equations. There are also differential equations which are classified by order and by degree. There are also partial differential equations.
What is a system of equations that equals -3 and 7?
Systems of equations don't equal numbers.
What can systems of equations be solved by?
By elimination or substitution
Give 6 different uses of matrices.?
CryptographyComputer graphicsCombinatoricsData recoverySolving systems of linear equations for arbitrary outputted valuesSolving systems of differential equations.
Which of the following systems of equations has no solution?
If they are quadratic equations then if their discriminant is less than zero then they have no solutions
Systems of equations have one solution?
Systems of equations can have just about any number of solutions: zero, one, two, etc., or even infinitely many solutions.
What is a systems of equations that has the same solution set as another system?
They are called equivalent systems.
What is the disadvantage of substitution of systems of equations?
If done properly there are no disadvantages.
What jobs use systems of equations?
i need to do this for math class
Are Linear equation systems consistent or inconsistent?
It depends on the equations.
How can you solve a system of equations?
The answer depends on whether they are linear, non-linear, differential or other types of equations.
