subtraction property of equality
Some others also asked this question on brainly and they said that is was the subtraction property of equality BUT the person who was asking the question included the answer choices. So just so you know, if not for people who know what the options are, it would be a whole lot harder to answer the question just a heads up.
1. Distributive property: a(b + c) = a.b + a.c
2. Property of subtraction of equality
3. Property of division of equality
The given equation is 7x + 42 = 42
7(x+6)=42 [Distributive property: a(b + c) = a.b + a.c]
7x+42=42 [Property of subtraction of equality]
Subtract 42 from both sides.
7x + 42 - 42 = 42 - 42
Property of division of equality
Divide both sides by 7.
omg i dont know oops sorry
salmon were fished in puget sound.