Solve {l}{y=-1}{2x+7y=3}

$$\left\{ \begin{array}{l}{ y = - 1 }\\{ 2 x + 7 y = 3 }\end{array} \right.$$

Solve for y, x

$$x=5$$

$$y=-1$$

Solution Steps

Consider the second equation. Insert the known values of variables into the equation.

$$2x+7\left(-1\right)=3$$

Multiply 7 and -1 to get -7.

$$2x-7=3$$

Add 7 to both sides.

$$2x=3+7$$

Add 3 and 7 to get 10.

$$2x=10$$

Divide both sides by 2.

$$x=\frac{10}{2}$$

Divide 10 by 2 to get 5.

$$x=5$$

The system is now solved.

$$y=-1 x=5$$