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Express x in terms of y where -12*x+3*y=-9

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Numerical solution:

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The solution

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-12*x + 3*y = -9
$$- 12 x + 3 y = -9$$
Detail solution
Given the linear equation:
-12*x+3*y = -9

Looking for similar summands in the left part:
-12*x + 3*y = -9

Move the summands with the other variables
from left part to right part, we given:
$$- 12 x = - 3 y - 9$$
Divide both parts of the equation by -12
x = -9 - 3*y / (-12)

We get the answer: x = 3/4 + y/4
Rapid solution [src]
     3   re(y)   I*im(y)
x1 = - + ----- + -------
     4     4        4   
$$x_{1} = \frac{\operatorname{re}{\left(y\right)}}{4} + \frac{i \operatorname{im}{\left(y\right)}}{4} + \frac{3}{4}$$
x1 = re(y)/4 + i*im(y)/4 + 3/4