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

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The equation is $\"\"$

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

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$\"\"$ (Add 4q to each side).

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

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$\"\"$ (Commutative property: a + b = b + a)

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$\"\"$ (Add: 10q + 4q = 14q)

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

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$\"\"$

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

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$\"\"$ (Subtract 10 from each side)

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

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

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$\"\"$ (Additive identity property: 14q + 0 = 14q)

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$\"\"$

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

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$\"\"$ (Divide each side by 14)

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$\"\"$ (Cancel common terms)

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

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Verify the solution:

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

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$\"\"$

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$\"\"$ (Multiply: $\"\"$ )

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

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$\"\"$ (Add: $\"\"$ )

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Compare the values, the equation is true.

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$\"\"$

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The value of $\"\"$ .