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34 votes
Two correct first steps are shown for the same equation below. What property justifies each step?first equation is5(x-3)=205x-15=20second equation is5(x-3)=20x-3=4

User Jiayao Yu
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1 Answer

7 votes
7 votes

The first equation is :

5(x-3)=20

5x-15=20

The property is from multiplication, it is called distributive property says that "multiply the outside number with each term inside the parenthesis.

Second equation is

5(x-3)=20

x-3=4

It is an equation property when a number multiply it change to divide the other side of the equality.

User Marcel Braasch
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