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__Elimination Method:__

The equations are

Equation (1)

* * Equation (2)

Since the coefficients of *b*-terms are additive inverses, these terms can be

elimanted by adding equations.* *

Write the equations in clumn form and add the corresponding columns.

According to division property of equality: Divide each side by 3.

(Cancel common terms).

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

(Equation 1).

(Product of two different signs is negative)

According to addition property of equality: Add 2 to each side.

(Apply commutative property of addition: )

(Apply additive inverse property: )

(Apply additive identity property: )

(Add: )

According to division property of equality: Divide each side by 3.

(Cancel common terms)

(Multiply each side by negative one)

(Product of two same signs is positive)

The solution is .

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