0
You multiply one or both equations by some constant (especially chosen for the next step), and add the two resulting equations together. Here is an example:
(1) 5x + 2y = 7
(2) 2x + y = 3
Multiply equation (2) by -2; this factor was chosen to eliminate "y" from the resulting equations:
(1) 5x + 2y = 7
(2) -2x -2y = -6
Add the two equations together:
3x = 1
Solve this for "x", then replace the result in any of the two original equations to solve for "y".
Add your answer:
Earn +20 pts
What is the disadvantage of using the substitution method in solving linear equations rather than the graph method?
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.
How can you solve a system of equations?
The answer depends on whether they are linear, non-linear, differential or other types of equations.
How do you solve systems of equations by using elimination?
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 = -310x - 6y = 58
The ELIMINATION method performs operations on a system of equations to?
Simultaneous equations can be solved using the elimination method.
How do you solve systems of equations using linear combination?
You select the linear combination of the equations in such a way that at each stage you eliminate one variable.You select the linear combination of the equations in such a way that at each stage you eliminate one variable.You select the linear combination of the equations in such a way that at each stage you eliminate one variable.You select the linear combination of the equations in such a way that at each stage you eliminate one variable.
How do you solve using elimination method 2x-y equals -2?
4
How do you solve 0.2x plus 4y equals -1 by using Elimination?
You cannot solve one linear equation in two variables. You need two equations that are independent.
When is it best to solve a systems of linear equations using elimination?
Elimination is particularly easy when one of the coefficients is one, or the equation can be divided by a number to reduce a coefficient to one. This makes substitution and elimination more trivial.
How do you decide whether to use elimination or subsitution to solve a three-variable system?
There is no simple answer. Sometimes, the nature of one of the equations lends itself to the substitution method but at other times, elimination is better. If they are non-linear equations, and there is an easy substitution then that is the best approach. With linear equations, using the inverse matrix is the fastest method.
What is the disadvantage of using the substitution method in solving linear equations rather than the graph method?
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.
How can you solve a system of equations?
The answer depends on whether they are linear, non-linear, differential or other types of equations.
How do you solve systems of equations by using elimination?
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 = -310x - 6y = 58
Solve the following systems of simultaneous linear equations using Gauss elimination method and Gauss-Seidel Method?
Solve the following systems of simultaneous linear equations using Gauss elimination method and Gauss-Seidel Method 2x1+3x2+7x3 = 12 -----(1) x1-4x2+5x3 = 2 -----(2) 4x1+5x2-12x3= -3 ----(3) Answer: I'm not here to answer your university/college assignment questions. Please refer to the related question below and use the algorithm, which you should have in your notes anyway, to do the work yourself.
How to solve linear Equations in 3 variables using Cramer's Rule?
Ask you math professor
The ELIMINATION method performs operations on a system of equations to?
Simultaneous equations can be solved using the elimination method.
How do you work out the point of intersection without a graph?
You use algebra and solve the system(s) of equations using techniques such as elimination or substitution.
Solve the system using elimination 3x -9y equals 3?
Solving equations in two unknowns requires two independent equations. Since you have only one equation there is no solution.
