Posted by **Erica** on Wednesday, August 31, 2011 at 1:06am.

5(2n + 4) - 3(4n - 6) = 2(20 - n)

I solved this equation and this is what I got.

10n + 20 - 12n + 18 = 40 - 2n

-2n + 38 = 40 -2n

38 ≠ 40

What does this mean?

Thank you!

- Algebra -
**Dark**, Wednesday, August 31, 2011 at 2:17am
This equation is invalid, the left and right sides are not equal, therefore there is no solution.

- Algebra -
**Reiny**, Wednesday, August 31, 2011 at 7:53am
If you end up with no variables, and the remaining statement is false, like in your case ----> the equation has no solution.

If you end up with no variables, and the remaining statement is true ---> the equation is true for any value of the variable. It would be an "identity"

## Answer This Question

## Related Questions

- algebra - What inequality represents the sentence the product of a number and 12...
- Algebra 1 or 2 - 5x/4 + 1/2 = x - 1/2 solve the equation and check your ...
- math - Simplify the Expressions 1) -4(3x-3) + 9(x+1)= -3x21 2) -9x(5x+4)+10(x+3...
- Algebra! Errr, whatever it is. - Which is J = rb solved for r? a. r = j/4b b. r...
- Physics - create a problem that could be represented/answered by the following ...
- science - guyz got a hard question... A net force of 10N to a 5 kg mass. bY HOW...
- Vectors - What is the distance between the parallel lines having equations 2x+2y...
- Math - what are the answers to the following questions? 6n+16=26, n=? 8a-6=18 a...
- physics - The sum of magnitudes of two forces is 16N.if the resultant force is ...
- Pre cal - Simply the equation: 2x^4y^0z^2/(yz^2)^-2 x 2zx^2y^-4 Can you help? I ...

More Related Questions