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1. Which property justifies this statement?

If x = −2, then 5x = −10.

A. Symmetric Property of Equality

B. Multiplication Property of Equality

C. Subtraction Property of Equality

D. Transitive Property of Equality

2. Drag a statement or reason to each box to complete the proof.

If 3(x−4)=x+4, then x=8.
Statement: Reason:
1. 3(x−4)=x+4 ----> Given
2. 3x−12=x+4 ----> ________
3. 3x−12+12=x+4+12 ----> ________
4. 3x=x+16 ----> Simplifying
5. 3x−x=x+16−x ----> ________
6. 2x=16 ----> Simplifying
7. 2x2=162 ----> ________
8. x=8 ----> Simplifying


A. Subtraction Property of Equality
B. Distributive Property
C. Addition Property of Equality
D. Division Property of Equality

Respuesta :

first one is a and second question is D. 
OddyseyOwl2016

This is irrelevant, but was THAT many exclamation points necessary?

Anyway, these aren't that hard, you gotta just use your brain a bit. These problems use a bit of simple common sense if you put 2-and-2 together and look into it. Look for signs and just use your head, it's hard to explain but just try. ^^

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