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__Elimination Method:__

The equations are

Equation (1)

* * Equation (2)

Multiply the first equation by 3.

* *Equation (3)* *

Since the coefficients of the y-terms 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 the corresponding columns.

Apply division property of equality: if *a* = *b* then

(Divide each side by 5)

(Cancel common terms)

(Divide: )

Now, find the *y* value by substituting in either equation.

(Equation 1)

(Subtract 5 from each side)

(Apply commutative property of addition: )

(Apply additive inverse property: )

(Apply additive identity property: )

(Subtract: )

The solution is .

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