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x-y+1=0 equation

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Numerical solution:

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The solution

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x - y + 1 = 0
$$\left(x - y\right) + 1 = 0$$
Detail solution
Given the linear equation:
x-y+1 = 0

Looking for similar summands in the left part:
1 + x - y = 0

Move free summands (without x)
from left part to right part, we given:
$$x - y = -1$$
Move the summands with the other variables
from left part to right part, we given:
$$x = y - 1$$
We get the answer: x = -1 + y
The graph
Sum and product of roots [src]
sum
-1 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} - 1$$
=
-1 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} - 1$$
product
-1 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} - 1$$
=
-1 + I*im(y) + re(y)
$$\operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} - 1$$
-1 + i*im(y) + re(y)
Rapid solution [src]
x1 = -1 + I*im(y) + re(y)
$$x_{1} = \operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} - 1$$
x1 = re(y) + i*im(y) - 1