Express x in terms of y where 1*x+4*y=20
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
1*x+4*y = 20
Looking for similar summands in the left part:
x + 4*y = 20
Move the summands with the other variables
from left part to right part, we given:
$$x = 20 - 4 y$$
We get the answer: x = 20 - 4*y
x1 = 20 - 4*re(y) - 4*I*im(y)
$$x_{1} = - 4 \operatorname{re}{\left(y\right)} - 4 i \operatorname{im}{\left(y\right)} + 20$$
x1 = -4*re(y) - 4*i*im(y) + 20