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by dividing your cost by how many things you are getting or buying

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Q: How can you use substitution to check your equation?
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Related questions

How do you check a solution to an equation?

By substitution.


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 the mathematical definition of substitution?

In mathematics substitution is when one term in an equation is replaced by another that has a known value. This is so that the equation itself can be resolved.


How would use solve the system of equation x plus 3y equals 23 by using substitution?

You'd need another equation to sub in


What Reduces an equation that has two variables to an equation that has one variable?

Substitution........apex


2x-3y equals -2 4x plus y equals 24 use substitution method and work the system of equation?

how do you use the substitution method for this problem 2x-3y=-2 4x+y=24


What is the definition of the linear equation of substitution?

X + y = z


How do you find coordinates of a line from an equation without graphing?

By substitution


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

substitution


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


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


How do you do math substitution?

Mathematical substitution is the process of using one equation to solve for multiple variables. For example: Equation 1: x + y = 4 Equation 2: 2x + y = 16 Using equation 1, solve for y: y = 4 - x <-- Plug this into equation 2. This is substitution because you are replacing y in equation 2 with what y is equal to in equation 1. 2x + y = 16 ----> 2x + (4 - x) = 16 Now you can solve for x: x + 4 = 16; x = 12 You can then substitute the value of x back into the equation that is solved for y: y = 4 - 12; y = -8 Check both equations: Equation 1: -8 + 12 = 4; 4 = 4 (Correct) Equation 2: 2(12) + (-8) = 16; 24 - 8 = 16; 16 = 16 (Correct) We have successfully used substitution to solve for two different variables, x and y.