$\"\"$

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The equation is $\"\"$ .

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

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

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$\"\"$ (Apply additive inverse property: $\"\"$ )

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To add fractions the denominators must be equal.

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Find the least common denominator (LCD).

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Multiples of 3: 3, 6, 9, 12, 15, 18, 21,......

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Multiples of 9: 9, 18, 27, 36, 45, 54,........

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The least common multiple of 3 and 9 is 9.

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Rewrite each fraction with a common denominator of 9.

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$\"\"$ $\"\"$

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Rewrite fractions using the LCD 9.

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$\"\"$

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$\"\"$ (LCM is 9)

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

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

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$\"\"$ (Multiply each side by negative one)

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$\"\"$ (Product of two same signs is positive) $\"\"$

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Check:

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

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$\"\"$

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$\"\"$ (LCM is 9) \ \

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$\"\"$ (Subtract: 7 $\"\"$ 4 = 3)

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$\"\"$ (Divide: $\"\"$ )

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The statement is true. $\"\"$

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The value of $\"\"$ .