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Solve system of equations!
To solve a system of equations in Excel, we can use the MMULT and MINVERSE functions.
The following examples show how to use these functions to solve several different systems of equations in Excel.
Example 1: Solve System of Equations with Two Variables
Suppose we have the following system of equations and we’d like to solve for the values of x and y:
5x + 4y = 35
2x + 6y = 36
To solve this system of equations, we can first type in the following values in Excel:
We can then use the following formula to solve for the values of x and y:
=MMULT(MINVERSE(A1:B2),C1:C2)We can type this formula into cell E1 and then press CTRL + SHIFT + ENTER:
This tells us that the value for x is 3 and the value for y is 5.
Example 2: Solve System of Equations with Three Variables
Suppose we have the following system of equations and we’d like to solve for the values of x, y, and z:
4x + 2y + 1z = 34
3x + 5y – 2z = 41
2x + 2y + 4z = 30
To solve this system of equations, we can first type in the following values in Excel:
We can then use the follow
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