Friday

August 22, 2014

August 22, 2014

Posted by **brooke** on Tuesday, April 12, 2011 at 7:51pm.

2k+3=4k-5

2k-4k+3-3=-5-3

2k-4k=-5-3

-2k/-2k = -8/2

k=4

- grade 9 math -
**Ms. Sue**, Tuesday, April 12, 2011 at 8:02pm2k+3=4k-5

Let's check it by substituting 4 for k.

(2 * 4) + 3 = (4 * 4) - 5

8 + 3 = 16 - 5

Yep!

11 = 11

**Related Questions**

9th grade Algebra - The question that Mr. Kirk helped me with a little while ago...

Algebra - Calulations for the following: -2x-3=2 Book states answer as -5/2. ...

Algebra - Hi this question was already asked but there is still no correct ...

Algebra - I can't seem to solve this for x correctly...I got 128 over 55 as an ...

Math - Solve for x: 5/x+6+2/x^2+7x+6=3/x+1 5/x+5+2/(x+6)(x+1)=3/x+1 5(x+6)(x+1)/...

ALGEBRA - not sure if this answer is correct frustrated find the reciprocal of 5...

Math-Stat - Jane and Bob are on the same game show. They answer one question, ...

Math - Does studying for an exam pay off? The number of hours studied, x, is ...

english - Correct the errors in dangling and misplaced modifiers by rearranging ...

9th Grade Math - Hey, I finished my math homework, and im not so sure i did it ...