$\"\"$ $\"\"$

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Elimination Method:

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The equations are

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$\"\"$ Equation (1)

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$\"\"$ Equation (2)

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Since the coefficients of the y-terms are same, you can eliminate these terms by subtracting the equations. Subtract the equations to eliminate variable y.

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Write the equations in column form and subtract the corresponding columns.

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$\"\"$ $\"\"$

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According to division property of equality: Divide each side by 4.

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$\"\"$

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$\"\"$ (Cancel common terms)

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

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Now, find the b value by substituting $\"\"$ in either equation.

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$\"\"$ (Equation 2)

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Apply additive identity property: $\"\"$ ) $\"\"$

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According to division property of equality: Divide each side by 2.

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$\"\"$

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$\"\"$ (Cancel common terms)

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

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The solution is $\"\"$ .