MatemáticasBásico1 respuestas

X + 3y = 105x - 2y = 16ecuacion de sustitucion 2x2x + 4y = 36x - 5y = - 473x - 4y = - 32x + y = 9?

X + 3y = 10 5x - 2y = 16 ecuacion de sustitucion 2x2 x + 4y = 3 6x - 5y = - 47 3x - 4y = - 3 2x + y = 9.

Calculadora interactiva

ax² + bx + c = 0

En resumen

<img src="https://tex.z-dn.net/?f=%20%5Cleft%20%5C%7B%20%7B%7Bx%2B3y%3D10%5C%3A%281%29%7D%20%5Catop%20%7B5x-2y%3D16%5C%3A%282%29%7D%7D%20%5Cright.%20" /> <img src="https://tex.z-dn.net/?

Mejor respuesta

3

<img src="https://tex.z-dn.net/?f=%20%5Cleft%20%5C%7B%20%7B%7Bx%2B3y%3D10%5C%3A%281%29%7D%20%5Catop%20%7B5x-2y%3D16%5C%3A%282%29%7D%7D%20%5Cright.%20" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BDespejar%7D%5C%3Ax%5C%3A%5Cmathrm%7Bpara%7D%5C%3A%281%29%3A" />

<img src="https://tex.z-dn.net/?f=x%3D10-3y" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BSustituir%5C%3A%7Dx%3D10-3y%5C%3Aen%5C%3A%282%29" />

<img src="https://tex.z-dn.net/?f=5%5Cleft%2810-3y%5Cright%29-2y%3D16" />

<img src="https://tex.z-dn.net/?f=50-17y%3D16" />

<img src="https://tex.z-dn.net/?f=-17y%3D-34" />

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B-17y%7D%7B-17%7D%3D%5Cfrac%7B-34%7D%7B-17%7D" />

y = 2

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BPara%5C%3A%7Dx%3D10-3y" />

<img src="https://tex.z-dn.net/?f=%5Cmathrm%7BSustituir%5C%3A%7Dy%3D2" />

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y = 3

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x = 3.