How to Solve Problems of SPLDV by Substitution Method

Resolving the SPLDV Problem With Substitution Method [1945909] then on the occasion of this time The Basic Mathematical Formula will describe the method Else you can use to solve the problems about the system of two linear equations. The method used in this method is to declare one variable into another variable in an equation. In order to make it easier for us to understand this method we just practice to solve the examples of the questions given below:

How to Solve SPLDV Problems With Substitution Method [1945909]
Sample Problem:
Use the substitution method to determine the set of solutions of the system of equations 5x + 5y = 25

]] [194590] [194590]]
Completion:
5x + 5y = 25 .......... (1)
3x + 6y = 24 .......... (2)

Notice the equation (1)

5x + 5y = 25 - 5y = 25 - 5x

Then, the y value is substituted in equation (2) to obtain :
3x + 6y = 24 ó 3x + 6 (5 - x) = 24 [1945909] ó 3x + 30 - 6x = 24
- 3x = -30 + 24
[194] ó x = 2

]

The value of y is obtained by substituting the value of x = 2 in equation (1) or equation (2) so that it is obtained:

5x + 5y = 25 ó 5 x 2 + 5y = 25
ó 10 + 5y = 25
] Ó 5y = 15
ó y = 3 [19] 459024]

So the set of solutions of the system of equations 5x + 5y = 25 and 3x + 6y = 24 are (2, 3)

That's a series of steps you can follow to Resolving the SPLDV Problem With Substitution Method . In the next article will be described another method that can be used to solve similar problems about the system of two-linear equations.
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