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x+2y=4 equation

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Numerical solution:

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The solution

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x + 2*y = 4
$$x + 2 y = 4$$
Detail solution
Given the linear equation:
x+2*y = 4

Looking for similar summands in the left part:
x + 2*y = 4

Move the summands with the other variables
from left part to right part, we given:
$$x = 4 - 2 y$$
We get the answer: x = 4 - 2*y
The graph
Rapid solution [src]
x1 = 4 - 2*re(y) - 2*I*im(y)
$$x_{1} = - 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 4$$
x1 = -2*re(y) - 2*i*im(y) + 4
Sum and product of roots [src]
sum
4 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 4$$
=
4 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 4$$
product
4 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 4$$
=
4 - 2*re(y) - 2*I*im(y)
$$- 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + 4$$
4 - 2*re(y) - 2*i*im(y)