Homework Help: Algebra

Posted by Bajisha on Sunday, September 27, 2009 at 3:34pm.

I'm trying to learn the difference between conditional and identity equations. Can you please check my work??

12). 3(x+2)=5x+4. I said conditional because on the one side x needed to equal negative two while on the other, it needed to equal -.8.

15). (4x+1)-2x=2(x+2) I said identity.
18). x^2+2(3x-2)=x^2+6x-4. I said Conditional, out of more of a guess than actual information. I reduced it to x^2+x=.60, but I was unsure how to figure out the left side of the reduction. Could you explain this??

Thanks!!!

Algebra - Reiny, Sunday, September 27, 2009 at 3:48pm
18.
x^2+2(3x-2)=x^2+6x-4
x^2 + 6x - 4 = x^2 + 6x - 4
clearly an identity, that is, the equation is true for all values of x

15.
(4x+1)-2x=2(x+2)
4x + 1 - 2x = 2x + 4
2x + 1 = 2x = 4
1 = 4 , Oh really?

This equation has no solution.
It is neither an identity nor "conditional equation".

Answer this Question

Related Questions

Algebra - Solve the equation identify as an identity, an inconsistent equation ...
Algebra HELP! - Solve the equation identify as an identity, an inconsistent ...
Algebra - Solve the equation identify as an identity, an inconsistent equation ...
Algebra - My instructions are to solve the problem by showing the steps and ...
geometry conditional form - I have a lot of cavities if I like candy a. Write ...
College Algebra - Hello I need help with this problem. I need to identify if the...
College Algebra - Hello I need help with this problem. I need to identify if the...
english - grammar - hello! I have some problems with mixed conditional.I ...
Math - I'm suppose to 'determine whether the equation is an identity or ...
Geometry - The inverse of conditional A is given below. Write conditional A, its...

For Further Reading

First Name:
School Subject:
Answer: