Question

find the value of Q in the following system so that the solution to the system is
{(x,y):x-3y=4}
x-3y=4
2x+qy=8

Answer 1

Compare coefficients in the 2 equations
Maintain their ratios.

Answer 2

eg 1 : 2x = 1:2

Answer 3

and 4:8 = 1:2

Answer 4

so -3 : q must be in same ratio.

Answer 5

I have a better idea of what I'm doing now but i still feel like a fish performing brain surgery.