$\"\"$

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The equation is . $\"minus$

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$\"minus$ (Apply distributive property: $\"a$ )

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$\"minus$ (Apply distributive property: $\"a$ ) $\"\"$

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

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$\"minus$ (Multipy: $\"minus$ )

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$\"minus$ (Multiply: $\"1$ )

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$\"minus$ (Add 12b to each side)

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$\"24$ (Simplify) $\"\"$

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$\"24$ ( Subtract 30 from each side)

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$\"24$ (Simplify)

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$\"Syntax$ (Divide each side by 24)

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$\"Syntax$ (Cancel common terms)

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

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Check:

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

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$\"minus$ (Substitute $\"Syntax$ )

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$\"Syntax$ (Multiply: $\"4$ )

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$\"Syntax$ (Subtract : $\"fraction$ )

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$\"Syntax$ (Add: $\"minus$ )

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

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The equality is true. \ \ $\"\"$

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The solution is $\"Syntax$ . \ \