$\"\"$

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The line equation in standard form is $\"\"$ , where A > 0 and A, B, C are integers.

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Substitute slope m = 3 and $\"\"$ in point–slope form line equation. $\"\"$

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$\"\"$

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

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$\"\"$ (Apply distributive property: a (b + c) = ab + ac)

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

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Rewrite the above equation in standard form,

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$\"\"$ (Subtract ‘y’ from each side)

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$\"\"$ (Apply commutative property of addition: $\"\"$ )

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

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

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

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

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

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

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

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The line equation in standard form is $\"\"$ .