$\"\"$

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The equation is $\"\"$ .

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First rewrite the above equation in the form $\"\"$ where $\"\"$ and it is equivalent to the statement $\"\"$ .

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Add 7 to each side.

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$\"\"$

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$\"\"$

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Divide each side by 4.

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$\"\"$

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Cancel common terms.

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$\"\"$

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Rewrite the equation $\"\"$ as two equations $\"\"$ . Then solve each equation separately. $\"\"$

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Solve the equation 1: $\"\"$ .

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Add 1 to each side.

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$\"\"$

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$\"\"$

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$\"\"$ .

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Solve the equation 2: $\"\"$ .

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Add 1 to each side.

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$\"\"$

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$\"\"$

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$\"\"$ . $\"\"$

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The solutions of the equation are $\"\"$ .