Solve the system by using a matrix equation.
6x-9y= 3
3x-4y=7
a. (17,11)
b. (12, 14)
c. (18, 12)
d. (15, 10

Question

21-10-2020
Mathematics

contestada

Solve the system by using a matrix equation.
6x-9y= 3
3x-4y=7
a. (17,11)
b. (12, 14)
c. (18, 12)
d. (15, 10

Respuesta :

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cjf7nb2y9j cjf7nb2y9j · Answer 1 · 2020-10-21T18:42:56+02:00

cjf7nb2y9j cjf7nb2y9j

21-10-2020

|6 -9 3|
|3 -4 7|

Apply to Row2 : Row2 - 1/2, Row1
|6 -9 3|
|0 1/2 11/2|

3 Simplify rows.
|6 -9 3|
|0 1 11|

Apply to Row1 : Row1 + 9 Row2.
|6 0 102|
|0 1 11|

5 Simplify rows.
|1 0 17|
|0 1 11|

Answer:
X= 17
Y=11

x=17
y=11

Answer Link

Solve the system by using a matrix equation. 6x-9y= 3 3x-4y=7 a. (17,11) b. (12, 14) c. (18, 12) d. (15, 10

Respuesta :

Otras preguntas

Solve the system by using a matrix equation.
6x-9y= 3
3x-4y=7
a. (17,11)
b. (12, 14)
c. (18, 12)
d. (15, 10