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

Anonymous

∙ 16y 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.

Wiki User

∙ 16y ago

What else can I help you with?

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