# Math Help - another systems

1. ## another systems

hello!!!

x+3λy=1
λx-3λy=2λ+1

and

3x+αy=3
αx+3y=3

2. Originally Posted by gdespina
hello!!!

x+3λy=1
λx-3λy=2λ+1

and

3x+αy=3
αx+3y=3

x+3λy=1
λx-3λy=2λ+1

Add these two equations together to get:

$x+x\lambda + 3y\lambda - 3y\lambda = 1 + 2\lambda + 1$

$x(1+\lambda) = 2(1+\lambda)$

$x=2$

Plug back into either of the equations to solve for y.