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x-y=4 equation

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Numerical solution:

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The solution

You have entered [src] 
x - y = 4
x−y=4x - y = 4
Simplify
Detail solution
Given the linear equation:
x-y = 4

Looking for similar summands in the left part:
x - y = 4

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