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Is eliminating variables from equations equal to find the value of the variables?
Wiki User
∙ 10y ago
No, but eliminating variables is one of several ways to find the value of variables in a system of equations.
Wiki User
∙ 10y ago
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What is a constant value that are not coefficients of variables to equations?
parameters
How doI solve system of equations by substitution?
Assuming the simplest case of two equations in two variable: solve one of the equations for one of the variables. Substitute the value found for the variable in all places in which the variable appears in the second equation. Solve the resulting equation. This will give you the value of one of the variables. Finally, replace this value in one of the original equations, and solve, to find the other variable.
How are equations and expressions alike?
They are alike because the both have value, they both have variables, and both have numbers. there, happy?
What does it mean to solve a system?
Finding a set of value for the set of variables so that, when these values are substituted for the corresponding variables, all the equations in the system are true statements.
How do you solve an equation with 2 unknowns that equal the same?
A single equation with two variables can be solved for one of the variables, in terms of the other. For example, a rectangle's area is A = wh (width x height). Now let's assume you know the area: 20 = wh. You can solve for any of these variables in terms of the other, for example, w = 20/h. That is, once you assign a value to "h", you can calculate "w". But you don't know the specific values for "w" and "h", because the equation has an infinite number of solutions.If you want to know specific values for the variables, in general, you need two different equations with 2 variables - or 3 equations with 3 variables, etc.
How do you solve simultanious equations?
By eliminating or substituting one of the variables in the two equations in order to find the value of the other variable. When this variable is found then substitute its value into the original equations in order to find the value of the other variable.
What is a constant value that are not coefficients of variables to equations?
parameters
What is of system of equations?
It is essentially a list of equations that have common unknown variables in all of them. For example, a+b-c=3 4a+b+c=1 a-2b-7c=-2 would be a system of equations. If there are the same number of equations and variables you can usually, but not always, find the solutions. Since there are 3 equations and 3 variables (a, b, and c) in this example one can usually find the value of those three variables.
How do you evaluate equations?
To evaluate means to find the value. Substitute the values of the variables and calculate the value. [You may need to solve for the values of the variables first.]
What do you call finding the value of the variables that make equations true?
Solving the equation.
What is solving equations about?
It is about finding a value of the variable (or variables) that make the equation a true statement.
How doI solve system of equations by substitution?
Assuming the simplest case of two equations in two variable: solve one of the equations for one of the variables. Substitute the value found for the variable in all places in which the variable appears in the second equation. Solve the resulting equation. This will give you the value of one of the variables. Finally, replace this value in one of the original equations, and solve, to find the other variable.
How do you do simaltanues equations?
Equate the coefficients and subtract or add to find the value of the the given unknown variables.
What is an equivlent in math?
Equivalent meaning the equations are of equal value
What do the variables stand for in algebraic equations?
The variables stand for an unknown number that has not yet been identified which has been kept as a variable for the purpose of finding the value of.
How are equations and expressions alike?
They are alike because the both have value, they both have variables, and both have numbers. there, happy?
What does it mean to solve a system?
Finding a set of value for the set of variables so that, when these values are substituted for the corresponding variables, all the equations in the system are true statements.
