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

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The equality is $\"\"$ .

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$\"\"$ (According to distributive property: $\"\"$ ) $\"\"$

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According to subtraction property of equality: Subtract 28 from each side.

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$\"\"$ \ \

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$\"\"$ (Commutative property of Addition: $\"\"$ )

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

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

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

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

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$\"\"$ (Cancel common terms)

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

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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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Graph the solution set on a number line $\"\"$

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Check:-

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To check, substitute 4, in $\"\"$ .

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$\"\"$ (Substitute $\"\"$ )

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

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

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The equality is true. $\"\"$

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The equality solution set is $\"\"$ .