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That's exactly the purpose of the substitution method ... to get an equation with

one less variable. When you have it, you solve it for the variable that's left.

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12y ago

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How do use substitution when solving system of equations?

You use substitution when you can solve for one variable in terms of the others. By substituting, you remove one variable from the equation, which can then be solved. Once you solve for one variable, you can use substitution to find the other.


What is usually the second step when solving a system of nonlinear equations by substitution?

The second step when solving a system of nonlinear equations by substitution is to solve one of the equations for one variable in terms of the other variable(s). Once you have expressed one variable as a function of the other, you can substitute that expression into the other equation to create a single equation in one variable. This allows for easier solving of the system.


Which is most likely the first step in solving a system of nonlinear equations by substitution APEX?

Isolating a variable in one of the equations.


Why is substitution the best method in solving systems of equations?

It is not always the best method, sometimes elimination is the way you should solve systems. It is best to use substitution when you havea variable isolated on one side


What is most likely to be the first step in solving a system of nonlinear equations by substitution?

The first step in solving a system of nonlinear equations by substitution is to isolate one variable in one of the equations. This involves rearranging the equation to express one variable in terms of the other(s). Once you have this expression, you can substitute it into the other equation(s) in the system, allowing you to solve for the remaining variables.


Can solve a system of linear equation by substitution?

Yes, a system of linear equations can be solved by substitution. This method involves solving one of the equations for one variable and then substituting that expression into the other equation. This process reduces the system to a single equation with one variable, which can then be solved. Once the value of one variable is found, it can be substituted back to find the other variable.


What is the first step in solving a 2step equatioin?

Add the inverse to both sides of the equation to get the variable term by itself. ex: 3x + 7 = -8 Add -7 to both sides of the equation this 'cancels' the +7 on the left leaving 3x, the variable term, alone on the left.


Which is most likely the last step in solving a system of non-linear equations by substitution?

The last step in solving a system of non-linear equations by substitution is typically to substitute the value obtained for one variable back into one of the original equations to find the corresponding value of the other variable. After finding both values, it's important to check the solutions by substituting them back into the original equations to ensure they satisfy both equations. This verification confirms the accuracy of the solutions.


What reduces an equation that has two variables to an equation that has one variable. It is then possible to find the solution for this variable.?

substitution


Solving for given variable?

What given?


What are the two methods in solving 2 unknowns?

By substitution or elimination in simultaneous equations.


What is usually the first step in solving a system of nonlinear equations by substitution?

The first step is usually to solve one of the equations for one of the variables.Once you have done this, you can replace the right side of this equation for the variable, in one of the other equations.