Questions on Algebra: Expressions involving variables, substitution answered by real tutors!

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Question 154061: I had a quiz today. The teacher wrote to solve this equation: What is x if x=2, x=x+5. Solve. I don't think it's possible, am I right?: I had a quiz today. The teacher wrote to solve this equation: What is x if x=2, x=x+5. Solve. I don't think it's possible, am I right?
Answer by jojo14344(818) About Me  (Show Source):
You can put this solution on YOUR website!
What is x if x=2, x=x+5. Solve. I don't think it's possible, am I right?
.
The confusion here is you want to know the NEW value of x but you represent it as the same identity as x too.
To re-phrase the question (I'm not questioning your teacher):
What is x[2] if x[1]=2 in eqn x[2]=x[1]+5?
Then you can solve it. Continuing,
x[2]=2+5
x[2]=7 -----------> final answer
Thank you,
Jojo