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2 votes
Solve the system by elimination.
-4x - 4y = 0
4x + 4y = 0

User Dan Levin
by
8.6k points

1 Answer

3 votes


\begin{bmatrix}4x+4y=0\\ -4x-4y=0\end{bmatrix}

Subtract 4y from both sides.


4x+4y-4y=0-4y

Simplify


4x=-4y

Divide each side by 4


(4x)/(4)=(-4y)/(4)

Simplify


x= -y

Substitute x as -y.


\begin{bmatrix}-4\left(-y\right)-4y=0\end{bmatrix}


0=0

The values of x and y are both zero.

User Roy Ing
by
8.0k points

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