Solve {l}{2x+1=0}{2y+4=0}

$$\left. \begin{array} { l } { 2 x + 1 = 0 } \\ { 2 y + 4 = 0 } \end{array} \right.$$

Solve for x, y

$$x=-\frac{1}{2}=-0.5$$

$$y=-2$$

Solution Steps

Consider the first equation. Subtract 1 from both sides. Anything subtracted from zero gives its negation.

$$2x=-1$$

Divide both sides by 2.

$$x=-\frac{1}{2}$$

Consider the second equation. Subtract 4 from both sides. Anything subtracted from zero gives its negation.

$$2y=-4$$

Divide both sides by 2.

$$y=\frac{-4}{2}$$

Divide -4 by 2 to get -2.

$$y=-2$$

The system is now solved.

$$x=-\frac{1}{2} y=-2$$