Question

-3y+4x=13
-5y-6x=-67
el valor de x,y​

Answer 1

PRIMERO

$-3y+4x=13 \\ 4x - 3y = 13$

SEGUNDO

$5y-6x=-67 \\ - 6x + 5y = - 67 \\ - 1 \times ( - 6)x - 1 \times 5y = - 1 \times ( - 67) \\ 6x - 5y = 67$

ESPERO TE AYUDÉ.

Answer 2

Explicación paso a paso:

-3y+4x=13

-3y+4x=13 -5y-6x=-67

-3y+4x=13 -5y-6x=-67el valor de x,y

método de cramer

□s = | –3 4 | = (–3×–6) – (–5×4) = 38

| –5. –6 |

□x = | -3 13 | = (-3×-67) – (-5×13) = 266

| -5 –67 |

□y = | 13. 4 | = (13×-6) – (-67×4) = 190

| -67. -6 |

soluciones

□x. 266

x = ------ = ------- = 7

□s. 38

□y. 190

y = -------- = -------- = 5

□s. 38

soluciones finales ;

X = 7 ; Y = 5