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

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The expression is $\"\"$ .

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According to subtraction property of equality: if $\"\"$ , then $\"\"$ .

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

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$\"\"$ (Additive inverse property: $\"\"$ ) $\"\"$

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Find the least common denominator(LCD)

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Multiples of 2: 2,4,6,8,10,12.....

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Multiples of 6: 6,12,18,24,30.....

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The least common multiple of 2 and 6 is 6

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Rewrite each fraction with a common denominator of 6

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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According to division property of equality: if $\"\"$ , then $\"\"$ .

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$\"\"$ (Divide each side by 6)

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$\"\"$ (Cancel comon terms)

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$\"\"$ (Zero product property: $\"\"$ ) $\"\"$

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According to addition property of equality: if a = b, then a + c = b + c.

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$\"\"$ (Add 4 from each side)

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$\"\"$ (Additive identity property: $\"\"$ )

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$\"\"$ (Additive invrese property: $\"\"$ ) $\"\"$

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According to division property of equality: if $\"\"$ , then $\"\"$ .

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$\"\"$ (Divide each side by negative 2)

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$\"\"$ (Cancel common terms)

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

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

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$\"\"$ (Cancel common terms)

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$\"\"$

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The value of the expression is $\"\"$ .