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What postulate justifies 3x plus 3 equals 3x plus 1?

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Anonymous

∙ 15y ago
Updated: 8/17/2019

Assuming the question to mean 3*x+3 = 3*(x+1) The reverse, ie 3*(x+1) = 3*x + 3*1 is known as the distributive property of multiplication over addition.

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Wiki User

∙ 15y ago
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