@ganeshie8 @sourwing @jim_thompson5910 @myininaya @mathmale @mathslover @KingGeorge @tHe_FiZiCx99 Can you check ten answers in this thread? :) I would prefer not to just keep opening new ones when I just want my answers checked. :)

Question

vishweshshrimali5 · Answer

Your question ?

anonymous · Answer

@Zarkon @mathstudent55

anonymous · Answer

8x = 128
A. x = 16 <---
B. x = 26
C. x = 36
D. x = 120

eric_d · Answer

correct

the_fizicx99 · Answer

10 questions? o_o

mathslover · Answer

Are these test questions?

anonymous · Answer

Nope School is over for me. I'm doing practice tests all summer. :)

mathslover · Answer

Cool. Sorry for doubting. We have to confirm :-)

anonymous · Answer

s'ok. :)

anonymous · Answer

Which of the numbers for n makes the following equation TRUE? 
3(2n − 1) − 2n = 21
A. 4
B. 5
C. 6 <----
D. 7

the_fizicx99 · Answer

Yes, N = 6 is correct. ._. I just realized I was still in your question in another tab

anonymous · Answer

If 5b − 25 = 25, what is the value of b?
A. There is no solution.
B. 0
C. 10 <----
D. 50

the_fizicx99 · Answer

Yes, 10

5b - 25 = 25
    +25     +25

5b = 50
/5      /5

b = 10

anonymous · Answer

Which of the numbers for n makes the following equation TRUE?
4(n + 3) + 7n = 34
A. −2
B. 0
C. 2 <---
D. 4

the_fizicx99 · Answer

yup, N = 2

the_fizicx99 · Answer

You know you can check this for yourself, right? Online calculators like Wolfram also have step by step guides >.>

anonymous · Answer

Solve the following linear equation for x.
2x + 7 = 2(6 + x) – 4
A. x = -2
B. x = 
C. infinitely many solutions
D. no solution <---

the_fizicx99 · Answer

Correct. 

2x + 7 = 12 + 2x - 4
2x + 7 = 8 + 2x

When you solve the 2x's cancel out and you can't further solve. So No solutions is correct.

anonymous · Answer

What are the solutions, if any, of the following equation?
6y − 3 = −6y + 3
A. There is no solution.
B. There are an infinite number of solutions. <---
C. 0.5
D. 2

the_fizicx99 · Answer

o_o Actually no, it's not B

the_fizicx99 · Answer

Can you show your attempt to solve for $\ \sf y $?

anonymous · Answer

I wokrd it out with someone else, I know. I just don't know where.

anonymous · Answer

Here it is. :p http://openstudy.com/users/crazycountrygirl#/updates/53937a85e4b01c619df0d69d

the_fizicx99 · Answer

Hmm, well.

Start by moving all of the constants to the left hand side.

6y − 3 = −6y + 3

So add 3 to both sides. |dw:1402196803338:dw|

Can you do the same for -6y? It's negative so in order to move it to the right you have to do the inverse which is additions. So add 6y to both sides.