Question

RESOLVER LA SIGUIENTE ECUACION CON EL METODO GRAFICO

4X + 8Y - 4Z = 12
2X +4 Y – 6Z = 8
6X + 12Y – 3Z = 7

Answer 1

Respuesta:

$4X+8Y-4Z=12$

$4X+8Y-4Z-\left(8Y-4Z\right)=12-\left(8Y-4Z\right)$

$4X=12-8Y+4Z$

$\frac{4X}{4}=\frac{12}{4}-\frac{8Y}{4}+\frac{4Z}{4}$

"" $X=3-2Y+Z$ ""

$2X+4Y-6Z=8$

$2X+4Y-6Z-\left(4Y-6Z\right)=8-\left(4Y-6Z\right)$

$2X=8-4Y+6Z$

$\frac{2X}{2}=\frac{8}{2}-\frac{4Y}{2}+\frac{6Z}{2}$

"" $X=4-2Y+3Z$ ""

$6X+12Y-3Z=7$

$6X+12Y-3Z-\left(12Y-3Z\right)=7-\left(12Y-3Z\right)$

$6X=7-12Y+3Z$

$\frac{6X}{6}=\frac{7}{6}-\frac{12Y}{6}+\frac{3Z}{6}$

"" $X=\frac{7-12Y+3Z}{6}$ ""