\"\"

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The equation is \"\".

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

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\"\"    (Subtract 2t from each side)

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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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Apply division property of equality: If a = b 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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Check:

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To check, substitute \"\", in \"\".

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\"\"

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\"\"          (Multiply: \"\")

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

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The equality is true.\"\"

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The solution is \"\".