Created By : Abhinandan Kumar

Reviewed By : Phani Ponnapalli

Last Updated : Mar 25, 2025


Solving System of Linear Equations using Inverse Matrix (4 Variables): Take advantage of our handy Solving System of Linear Equations using Inverse Matrix (4 Variables) Calculator to find the addition of any 4 fractional equations easily. You just have to input the fractions as inputs and tap on the calculate button to get the result in no time.

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What is meant by Linear Equation?

In mathematics, a linear equation is defined as an expression where each term in the variable has an exponent of one. If it is represented in a graph then it results in a straight line. The straight-line equation y=mx+c is an example of a linear equation. 

Generally, the form of linear equation is Ax+B=C, where A, B, C are constants and x is variable. Moreover, the linear equations can be written in three distinct ways, they are 

  • Linear equation in one variable
  • Linear equation in two variables
  • Linear equation in three variables

Solving the linear equations calculator find the solution of the variable for a given equation within seconds.

Examples of Solving System of Linear Equations using Inverse Matrix (4 Variables)

Question 1: Solve the problem of finding a system of Linear Equations using Inverse Matrix (4 Variables)

 78 ๐‘ฅ + 88 ๐‘ฅ +  56 ๐‘ฅ + 8 ๐‘ฅ= 89

 2 ๐‘ฅ + 3 ๐‘ฅ +  0 ๐‘ฅ + -1 ๐‘ฅ= -1

-3 ๐‘ฅ + 4 ๐‘ฅ +  1 ๐‘ฅ + 2 ๐‘ฅ= 10

 1 ๐‘ฅ + 2 ๐‘ฅ +  -1 ๐‘ฅ + 1 ๐‘ฅ= 1

Solution :

As A * A-1 = I

where I is the identity matrix of 4 x 4

Step-1 ----> R2 -> R2 - R1*0.0256

Step-2 ----> R3 -> R3 - R1*-0.0385

Step-3 ----> R4 -> R4 - R1*0.0128

Step-4 ----> R3 -> R3 - R2*9.9309

Step-5 ----> R4 -> R4 - R2*1.1724

Step-6 ----> R4 -> R4 - R3*-0.002

Step-7 ----> R3 -> R3 - R4*6.1045

Step-8 ----> R2 -> R2 - R4*-0.5153

X = A-1. B

Answers

โ— x1 = -0.53
โ— x2 = 0.9
โ— x3 = 1.29
โ— x4 = 1.83

FAQs on Solving System of Linear Equations using Inverse Matrix (4 Variables)

1. How do non-linear equations form?

Generally, a non-linear equation is given by ax²+by² = c, where a,b,c are constant values and x, y are variables.

2. How can I Solve a Solving System of Linear Equations using Inverse Matrix (4 Variables) in a fraction of a second?

You can easily & quickly solve a system of Linear Equations using an Inverse Matrix (4 Variables) by using Linearequationscalculator.com  offers a free online & handy Linear Equations in Two Variables Calculator.