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9x-14y=-39x−14y=−3; 2x-ay=-62x−ay=−6

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9*x - 14*y = -39*x - 14*y
$$9 x - 14 y = - 39 x - 14 y$$
2*x - a*y = -62*x - a*y
$$- a y + 2 x = - a y - 62 x$$
-a*y + 2*x = -a*y - 62*x
Rapid solution
$$x_{1} = 0$$
=
$$0$$
=
0
Gaussian elimination
Given the system of equations
$$9 x - 14 y = - 39 x - 14 y$$
$$- a y + 2 x = - a y - 62 x$$

We give the system of equations to the canonical form
$$48 x = 0$$
$$64 x = 0$$
Rewrite the system of linear equations as the matrix form
$$\left[\begin{matrix}48 & 0\\64 & 0\end{matrix}\right]$$

It is almost ready, all we have to do is to find variables, solving the elementary equations:
$$48 x_{1} = 0$$
$$64 x_{1} = 0$$
We get the answer:
$$x_{1} = 0$$
$$x_{1} = 0$$
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