Express x in terms of y where 1*x-1*y=9
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
1*x-1*y = 9
Looking for similar summands in the left part:
x - y = 9
Move the summands with the other variables
from left part to right part, we given:
$$x = y + 9$$
We get the answer: x = 9 + y
$$x_{1} = \operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} + 9$$