Express x in terms of y where -3*x-6*y=18
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
-3*x-6*y = 18
Looking for similar summands in the left part:
-6*y - 3*x = 18
Move the summands with the other variables
from left part to right part, we given:
$$- 3 x = 6 y + 18$$
Divide both parts of the equation by -3
x = 18 + 6*y / (-3)
We get the answer: x = -6 - 2*y
x1 = -6 - 2*re(y) - 2*I*im(y)
$$x_{1} = - 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} - 6$$
x1 = -2*re(y) - 2*i*im(y) - 6