$\"\"$

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The equation is $\"\"$ .

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The matrices have the same dimensions and the corresponding elements are equal.

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The equality can be written as a two linear equations

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$\"\"$ Equation (1)

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$\"\"$ Equation (2) $\"\"$

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Consider the second equation $\"\"$ .

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Apply subtraction property of equality; if $\"\"$ , then $\"\"$ .

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$\"\"$ (Subtract 1 from each side)

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$\"\"$ (Apply Additive inverse property: $\"\"$ )

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$\"\"$ (Subtract: $\"\"$ ) $\"\"$

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Apply division property of equality; if $\"\"$ , then $\"\"$ .

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$\"\"$ (Divide each side by 4)

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$\"\"$ (Cancel common terms)

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

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The first equation is $\"\"$ .

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$\"\"$ (Substitute x = 3 in first equation)

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Apply subtraction property of equality; if $\"\"$ , then $\"\"$ .

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$\"\"$ (Subtract 3 from each side)

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$\"\"$ (Apply Additive inverse property: 3 $\"\"$ 3 = 0)

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$\"\"$ (Subtract: $\"\"$ ) $\"\"$

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Apply division property of equality; if $\"\"$ , then $\"\"$ .

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$\"\"$ (Divide each side by 2)

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$\"\"$ (Cancel common terms)

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

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The solution is $\"\"$ .