$\"\"$

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The equation is $\"\"$ .

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Apply distributive property: $\"\"$ .

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$\"\"$

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

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

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

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Apply addition property of equality: If a = b then a + c = b + c.

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$\"\"$ (Add 70 to each side)

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

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

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$\"\"$ (Add: 5 + 70 = 75) $\"\"$

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Apply subtraction property of equality: If a = b then $\"\"$ .

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$\"\"$ (Subtract 7x 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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$\"\"$

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The statement 75 = 0 is never true. The equation has no solutions and

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the solution set is $\"\"$ $\"\"$

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The statement 75 = 0 is never true. The equation has no solutions and

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the solution set is $\"\"$ .