$\"\"$

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The equations are $\"\"$ and $\"\"$ .

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$\"\"$ Equation (1)

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$\"\"$ Equation (2)

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Since $\"\"$ , substitute $\"\"$ for x in the first equation.

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$\"\"$

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Distribute terms using distributive property: $\"\"$ .

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$\"\"$

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

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$\"\"$ (Add: $\"\"$ ) $\"\"$

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Apply subtraction property of equality: If a = b then a $\"\"$ c = b $\"\"$ c.

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$\"\"$

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Apply commutative property of addition: $\"\"$ .

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$\"\"$

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

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

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

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$\"\"$ (Multiply each side by negative one)

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$\"\"$ (Product of two same signs is positive) $\"\"$

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Now, find the x value by substituting $\"\"$ in Equation 2.

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$\"\"$

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$\"\"$ (Product of two same signs is positive)

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$\"\"$ (Add: $\"\"$ ) $\"\"$

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The solution is $\"\"$ .