SamTheGreat SamTheGreat

22-03-2016
Mathematics

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(12y + 12) - 21y

Simplify each expression using the properties of numbers.

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JahJah135 JahJah135

22-03-2016

Its 12y - 9 because when u add twelve pluus 12 it 24 then -21 is to 3 which 12 - 9 is 3

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SmarticalParticals SmarticalParticals

22-03-2016

Use the commutative property..

(12y - 21y) + 12 =
-9y + 12 =
-9y = -12
y = 12/9 = 4/3 = 1 1/3

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