Linear Algebra Examples

$2 x + y = 0$

Step 1

Subtract $2 x$ from both sides of the equation.

$y = - 2 x$

Step 2

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

$(- \infty, \infty)$

Set-Builder Notation:

${x | x \in ℝ}$

Step 3