SOLUTION: Write a justification for Line 2, Line 3, and Line 4. Explain why you chose each justification. Line 1 5x – 2 = 3x + 7 Line 2 2x – 2 = 7 Line 3 2x = 9 Line

Algebra ->  Linear-equations -> SOLUTION: Write a justification for Line 2, Line 3, and Line 4. Explain why you chose each justification. Line 1 5x – 2 = 3x + 7 Line 2 2x – 2 = 7 Line 3 2x = 9 Line      Log On


   

Question 994391: Write a justification for Line 2, Line 3, and Line 4. Explain why you chose each justification.
Line 1 5x – 2 = 3x + 7
Line 2 2x – 2 = 7
Line 3 2x = 9
Line 4 x = 4.5
Found 2 solutions by stanbon, Boreal:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Write a justification for Line 2, Line 3, and Line 4. Explain why you chose each justification.
Line 1 5x – 2 = 3x + 7
Subtract 3x from both sides to get:
Line 2 2x – 2 = 7
Add 2 to both sides to get
Line 3 2x = 9
Divide both side by 2 to get
Line 4 x = 4.5
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Cheers,
Stan H.
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Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
You may subtract 3x from both sides of an equation without changing the equation.
You may add 2 to both sides of the equation without changing the equation.
You may divide both sides of an equation by 2 without changing the equation.