SOLUTION: Give a logical argument for the proof below. Given: 3(x - 4) = 7x + 8 Prove: x = -5 Statements: 1. 2. 3. 4. 5. 6. 7. 8. Reasons: 1. 2. 3. 4. 5. 6. 7. 8.

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Give a logical argument for the proof below. Given: 3(x - 4) = 7x + 8 Prove: x = -5 Statements: 1. 2. 3. 4. 5. 6. 7. 8. Reasons: 1. 2. 3. 4. 5. 6. 7. 8.      Log On


   

Question 1208280: Give a logical argument for the proof below.
Given: 3(x - 4) = 7x + 8
Prove: x = -5

Statements: 1. 2. 3. 4. 5. 6. 7. 8.
Reasons: 1. 2. 3. 4. 5. 6. 7. 8.
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
Proof, or solution steps?

3%28x-4%29=7x%2B8
3x-12=7x%2B8 Distributive Property
-12-8=7x-3x Addition Property, but steps were combined
-20=4x Aritmetic, simplification
x=-5 used Multiplication Property of Equality, ...?