What is the x - value in the solution to this system of linear equations?
What is the x - value in the solution to this system of linear equations? 2x − y = 11 x + 3y = −5.
What is the x - value in the solution to this system of linear equations? 2x − y = 11 x + 3y = −5.
En resumen
Respuesta : <img src="https://tex.z-dn.net/?f=x%3D4%5C%5Cy%3D-3" />Explicación paso a paso : <img src="https://tex.z-dn.net/?
Williamcarrilo242
Respuesta : <img src="https://tex.z-dn.net/?f=x%3D4%5C%5Cy%3D-3" />Explicación paso a paso : <img src="https://tex.z-dn.net/?f=%5Ctexttt%7BEl%20sistema%20es%3A%7D%5C%5C%5C%5C%5Cleft%5Clbrace%5Cbegin%7Barray%7D%7Brcl%7D2x-y%26%3D%2611%5C%5Cx%2B3y%26%3D%26-5%5Cend%7Barray%7D%5Cright." /><img src="https://tex.z-dn.net/?f=%5Ctexttt%7BUsaremos%20el%20m%5C%E2%80%99etodo%20de%20reducci%5C%27on%2C%20para%20eso%2C%20multiplicaremos%7D%5C%5C%5Ctexttt%7Bla%20exuaci%5C%27on%201%20por%203%20obteni%5C%27endose%3A%7D%5C%5C%5C%5C%5Cleft%5Clbrace%5Cbegin%7Barray%7D%7Brcl%7D3%282x-y%26%3D%2611%29%5C%5Cx%2B3y%26%3D%26-5%5Cend%7Barray%7D%5Cright.%3D%5Cleft%5Clbrace%5Cbegin%7Barray%7D%7Brcl%7D6x-3y%26%3D33%5C%5Cx%2B3y%26%3D%26-5%5Cend%7Barray%7D%5Cright." /><img src="https://tex.z-dn.net/?f=%5Ctexttt%7BSumando%201%20y%202%20nos%20queda%3A%7D%5C%5C%5C%5C7x%3D28%5C%5Cx%3D%5Cfrac%7B28%7D%7B7%7D%3D4" /><img src="https://tex.z-dn.net/?f=%5Ctexttt%7BSustituyendo%20el%20valor%20de%20x%2Cpor%20ejemplo%2C%20en%201%3B%20%3C%2Fp%3E%3Cp%3E%20obtenemos%3A%7D%5C%5C%5C%5C2%284%29-y%3D11%20%5C%5C8-y%3D11%5C%5C-y%3D11-8%5C%5Cy%3D8-11%5C%5Cy%3D-3" /><img src="https://tex.z-dn.net/?f=%5Ctexttt%7BAs%5C%27i%20las%20soluciones%20del%20sistema%20son%3A%7D%5C%5C%5C%5Cx%3D4%5C%5Cy%3D-3" />.
Resolver. - 6x - 17 > 8x + 25 - 17 - 25 > 8x + 6x - 42 > 14x - 42 / 14 > x - 3 > x x < - 3 xxxxxxxxxxxxxxxxxxxxxxxxxxxx) - 3 Solución x∈ ( - infinito , - 3).
No tiene solución porque la T debería tener el valor de 0 , y T + E no podría dar Y y además los números no pueden empezar por 0 espero que te ayude a mi me tocó hacerlo.
Respuesta : Me quedé sin palabras con la primera respuesta está muy bienExplicación paso a paso :
This problem can be solved in 2 ways, by solving each system or by evaluating the solution in each system. I prefer the second since it is faster, at least for me. After evaluating, the answer is C.
Anabella - 2x + y = 8 (1) - 3x - y = 7 (2) Sumando (1) + ( 2) - 5x = 15 x = 15 / ( - 5) x = - 3 X en (1) [si prefieres, puedes usar (2)] - 2( - 3) + y = 8 6 + y = 8 y = 8 - 6 y = 2 Alternativa A.