What is the solution of the system?

Solution of system of linear equation y = 2x – 4 and 3x - 2y = 8 is x = 0 and y = -4

Need to determine solution of following system of linear equation

y = 2x – 4    (1)

3x - 2y = 8   (2)

If we observe the equation (1), we can say that we are having value of y in terms of x. so substitution method is the best approach to solve the above system of linear equation.

In substitution method, we will substitute value of y in equation (2) in terms of variable x from equation (1)  

On substituting y = 2x – 4 in equation (2) , we get equation in one variable that is x which is as follows

3x – 2 (2x – 4 )   = 8    

=> 3x – 4x + 8 = 8

=> -x = 8 – 8  

=> x = 0

On substituting x = 0 in equation (1), we get  

y = 2 x 0 – 4

=> y = -4

Hence solution of system of linear equation y = 2x – 4 and 3x - 2y = 8 is x = 0 and y = -4

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