Assignment:

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Answer:

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Explanation:

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[ Step One ] Expand


[ Step Two ] Rewrite Equation

[ Step Three ] Add Similar Elements


[ Step Four ] Expand


[ Step Five ] Rewrite Equation

[ Step Six ] Add 2 To Both Sides

[ Step Seven ] Simplify

[ Step Eight ] Add 2x To Both Sides

[ Step Nine ] Simplify

[ Step Ten ] Divide Both Sides By 7

[ Step Eleven ] Simplify

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