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

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

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integers.

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Substitute slope m = 1 and $\"\"$ in point–slope form line equation.

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$\"\"$

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$\"\"$

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

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$\"\"$ (Distributive property: $\"\"$ ) $\"\"$

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Rewrite the above equation in standard form,

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$\"\"$ (Subtract y from both sides)

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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 3 from both sides)

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

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

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

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$\"\"$

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$\"\"$

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