Question

PLSS HELPPP!!! I NEED THE ANSWER NOW !

Answer 1

The property used to arrive at line 2 is the additive property of equalities

The additive property of equalities states that for real numbers if x = y : then x + z = y + z  

For example if 2 = 2 , then 2 + 1 = 3

In order to arrive at line 2, x and 2x were added together to arrive at 3x

The distributive property was used to arrive at line. The property states that : x(1 + 2) = x + 2x

Subtractive property of equalities was used to arrive at line 3

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