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15-06-2018
Mathematics

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Solve 30 = −5(6n + 6), justifying each step with an algebraic property.

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EchoIocation EchoIocation

15-06-2018

1) property of distribution: 30 = -30n - 30
2) inverse property of addition: 60 = -30n
3) inverse property of multiplication: -2 = n

step 2: subtract 30 from both sides
step 3: divide -30 from both sides

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–5 + 2n –11 or –6 – 10n > 44