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

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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 1.7n to each side)

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

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

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$\"\"$ (Distributive property: (a + b)c = ac + bc)

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$\"\"$ (Add: 4.3 + 1.7 = 6) $\"\"$

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

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$\"\"$ (Subtract 1 to each side)

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

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

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$\"\"$ (Divide each side by 6)

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$\"\"$ (Cancel common terms) $\"\"$

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Check:

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$\"\"$ (Replace n in the equation with $\"\"$ )

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

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

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$\"\"$ (Add: $\"\"$ ) The equation is true $\"\"$

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The solution is $\"\"$ .