SOLUTION: Give reasons for the steps in the following proof: If 3x + (-1)=0, then x= 1/3. 1. 3x+(-1)=0 1.Given 2. [3x+(-1)+1=0+1 2. 3. 3x+[(-1)+1]=0+1 3. 4. 3x+0=0+

Question 335772: Give reasons for the steps in the following proof:
If 3x + (-1)=0, then x= 1/3.
1. 3x+(-1)=0 1.Given
2. [3x+(-1)+1=0+1 2.
3. 3x+[(-1)+1]=0+1 3.
4. 3x+0=0+1 4.
5. 3x=1 5.
6. 1/3(3x)=1/3(1) 6.
7. (1/3*3)x=1/3(1) 7.
8. 1*x=1/3*1 8.
9. x=1/3 9.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1. Given
2. Add 1 to both sides
3. Same as 2 brackets are not required.
4. Additive inverse property.
5. Identity property.
6. Divide both sides by 3.
7. Commutative property.
8. Multiplicative inverse property.
9. Identity property.
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