Matemática discreta Ejemplos

Solve Using a Matrix by Elimination 7x+5y*1=13 , 6x+4y*1=19
,
Paso 1
Move variables to the left and constant terms to the right.
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Paso 1.1
Multiplica por .
Paso 1.2
Multiplica por .
Paso 2
Write the system as a matrix.
Paso 3
Obtén la forma escalonada reducida por filas.
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Paso 3.1
Multiply each element of by to make the entry at a .
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Paso 3.1.1
Multiply each element of by to make the entry at a .
Paso 3.1.2
Simplifica .
Paso 3.2
Perform the row operation to make the entry at a .
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Paso 3.2.1
Perform the row operation to make the entry at a .
Paso 3.2.2
Simplifica .
Paso 3.3
Multiply each element of by to make the entry at a .
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Paso 3.3.1
Multiply each element of by to make the entry at a .
Paso 3.3.2
Simplifica .
Paso 3.4
Perform the row operation to make the entry at a .
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Paso 3.4.1
Perform the row operation to make the entry at a .
Paso 3.4.2
Simplifica .
Paso 4
Use the result matrix to declare the final solution to the system of equations.
Paso 5
The solution is the set of ordered pairs that make the system true.