Question

5 Algebra 2, multiple choice questions? Please help me solve for x....

Answer 1

\[\frac{ 3 }{ 3x }+\frac{ 1 }{ x+4 }=\frac{ 10 }{ 7x }\]

Answer 2

A. x=-3
B. x=3
C. x=-3 and x=3
D. No Solution

Answer 3

\[\frac{ 5 }{ x^2-1 }-\frac{ 2 }{ x }=\frac{ 2 }{ x+1 }\]
A. x=1/4 and 2
B. x=-1/4 and -2
C. x=1/4 and -2
D. x=-1/4 and 2

Answer 4

\[\frac{ 7 }{ 8 }-\frac{ 1 }{ x }=\frac{ 3 }{ 4 }\]
A. x= 1
B. x=2
C. x=4
D. x=8

Answer 5

\[\frac{ 2 }{ 2 }+\frac{ 4 }{ 2x }=\frac{ x+4 }{ 10 }\]
A. x=-4
B/ x=5
C. x=-4 and x= 5
D. No Solution

Answer 6

\[\frac{ 5 }{ x }+\frac{ 4 }{ x^-9 }=\frac{ 3 }{ x-3 }\]
A. x=-4 and x=-9
B. x=4 and x=-9
C. x=-4 and x=9
D. x=4 and x=9

Answer 7

multiple choice, if stuck, simply amounts to testing if the options fit the bill

Answer 8

Plug in the values for x to See what matches?

Answer 9

yep ... that pretty much simplifies things to addition and subtraction of fractions in this case

Answer 10

Okay, thanks :) I'll give it a try

Answer 11

\[\frac{ 5 }{ x }+\frac{ 4 }{ x^{-9} }=\frac{ 3 }{ x-3 }\]does x=4 ring true?
\[\frac{ 5 }{ 4 }+\frac{ 4 }{ 4^{-9} }=\frac{ 3 }{ 4-3 }\]
\[\frac{ 5 }{ 4 }+4^{10} =3\]im going with x not equal 4 in that case ... so we can rule out that option

Answer 12

that leaves options A and C, since they differ by -9 or 9

try the x=9 option

Answer 13

if it fits, your good, if not ... you know its the other one

Answer 14

Process of elimination :)

Answer 15

exactly ;) thats how i passed most of my community college tests

Answer 16

Haha great advice
:)

Answer 17

check that x^(-9) i think youve got that typoed ...

Answer 18

Yes. It should be x-9
not exponents

Answer 19

#1=B

Answer 20

#2=D

Answer 21

#1 is b, correct

Answer 22

Thanks :)

Answer 23

#2 is d, correct

Answer 24

Yay!

Answer 25

#3=D

Answer 26

correct, that one was rather simple

3/4 = 6/8

7/8 - 1/8 = 6/8 ... so x=8

Answer 27

i think the last one is still typoed; you might wanna rewrite it

Answer 28

#4=A

Answer 29

#5=C

Answer 30

#4 is not A

Answer 31

it looks like your on a roll :)

what is the problem setup for #4?

Answer 32

When I plugged in -4 for x in #4, it worked. But when I submitted my answer it was wrong. I should have worked all of them before submitting :( Oh, well :) now I know for next time. That was the only one I got wrong

Answer 33

ahh, well now you also know the shortcut ;) good job overall

Answer 34

Thanks! :D