$\"\"$

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The system of equations are $\"\"$ .

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To solve the equation 2 for y as follows:

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$\"\"$ (Write equation 2)

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$\"\"$ (Subtract 2x from each side) $\"\"$

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The value of $\"\"$ substitute in equation 1, and solve for x as follows:

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$\"\"$ (Write equation 1)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Apply formula: $\"\"$ )

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$\"\"$ (Subtract 25 from each side)

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$\"\"$ (Divide each side by 5) $\"\"$

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$\"\"$ (Write quadratic equation)

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$\"\"$

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$\"\"$

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$\"\"$ (Write factors form)

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$\"\"$ (Set 1 equal to zero)

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$\"\"$ (Set 2 equal to zero) $\"\"$

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The values of $\"\"$ substitute in the value of $\"\"$ .

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$\"\"$ (Write value of y)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Simplify)

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$\"\"$ (Write value of y)

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Simplify) $\"\"$

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The ordered pairs $\"\"$ are solutions of the system of equations.