$\"\"$

The equations are

$\"\"$ Equation (1) \ \

$\"\"$ Equation (2)

$\"\"$

Multiply the first equation by -2

Now the equation is

$\"\"$

$\"\"$ Equation (1)

Since the coefficients of the x-terms,-2and +2,are additive inverses, you can eliminate these terms by adding the equations. .

Add the equations to eliminate variable y.

$\"\"$ (write the equations in column form and add)

$\"\"$ (Divide each side by 5)

$\"\"$ (Divide: $\"\"$ )

$\"\"$

Now Substitute 1 for y in either equation to find the value of x.

$\"\"$ (equation 1)

$\"\"$ (replace y by 1 )

$\"\"$ (subtract 1 on each side)

$\"\"$ (subtract $\"\"$ )

The solution is $\"\"$

$\"\"$

The solution is $\"\"$ .