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Q: What does it mean to substitute a value into the equation?
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What does it mean for a value to be a solution to an equation?

For a value to be a solution to an equation, when you substitute the value for the variable, the equation becomes true. 4+B=6 B is the variable. 2 is the solution Substitute 2 for B 4+2=6 The equation is true.


When you find the value of a variable you solve or check an equation?

when you find the value, you SOLVED the equation. you CHECK the equation when you substitute the value in the variables place and check that the equation is true.


How do you check to see if the value of the variable is a solution to the equation?

Substitute that value in the equation, and then check to see if the resulting statement is TRUE.


How did you know that the values of variable raelly satisfy the equation?

You substitute the value of the variable into the equation and simplify. If the rsult is a true statement then that value of the variable really does satisfy the equation.


Why is it possible to check the solution to any equation?

If you found the value of x that is a solution to an equation, you want to substitute that value back into the original equation, to check that it indeed satisfies the equation. If it does not satisfy the equation, then you made an error in your calculations, and you need to rework the problem.


How do you solve a equation y7.80x plus 40?

Assuming you mean y = 7.80x + 40: This has infinitely many solutions, and it is already solved for "y". If you substitute ANY value for "x", you can calculate the corresponding value for "y".


What does it mean to substitute a given value for each variable in an algeraic expression?

It means you replace each instance of the given variable with the given value. For instance, you have the following equation: A(A+2A)= B Then someone says to "substitute the value '4' for each instance of 'A'. You'd just replace them, and get: 4 ( 4 + 2(4)) = B


How did you find each product of quadratic equations?

You substitute the value of the variable into the quadratic equation and evaluate the expression.


Explain how to find restrictions on the variable in a rational equation?

Substitute the variable in the denominator for a value that will make the denominator have a value of 0 or an imaginary number


How do you know if an order pair is on the line of an equation?

Substitute the first of the ordered pair wherever x appears in the equation and the second value wherever you have y. Evaluate the equation. If it is true, then the point is on the line and if not, it is not.


To evaluate a function for a specific value substitute the value in for what?

You substitute the variable for its value. Or you substitute the variables for each of the values.


What does absolute value inequality mean?

It is an equation used to anwer an absolute value inequality.