Linear equations in one variable

Linear Equations in one variable class 8

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What are Linear Equations in one variable ??

Simple Equations in one variable is a condition wherein , algebraic expressions are expressed with an equal sign with only one variable (x or y or z) in Linear equation.

Lets see an example for some simple equations

3x + 5 = 11 

In the above equation note the following

  • 3x is algebraic expression
  • X is variable (only 1 variable)
  • The power of variable is 1.
  • Change in variable value changes result of equation.( Equation holds true or not)

Lets solve a few equations

Q.1    5(x+1) = 6

Ans :   5*x + 5*1 = 6

            5x + 5 = 6

            Substracting 5 on both sides

            5x + 5 – 5 = 6 -5

           5x = 1          

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