$\"\"$

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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 $\"\"$ 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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Find the Least Common Denominator (LCD) of improper fraction $\"\"$ and $\"\"$ .

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Find the Least Common Multiple of 3 and 7.

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Multiples of 3: $\"\"$

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Multiples of 7: $\"\"$

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The least common multiple of 3 and 7 is 21, the LCD is 21.

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Rewrite each fraction using the least common denominator (LCD).

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$\"\"$ and $\"\"$ $\"\"$

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Rewrite the subtract using the LCD.

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$\"\"$

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$\"\"$

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

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Check:

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To check the solution substitute the value $\"\"$ in original equation.

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$\"\"$

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

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The equality is true. $\"\"$

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The value of $\"\"$ .