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6/10

In order to find the inverse, you need to exchange the x and y.

In this case, write F(x) as y and all the other x's as y.

x= 2y+3/5y-2

Then you isolate y.

After you've isolated y, you write it as F^-1(x), which is the inverse...

Try it on your own ^_^ 

hope it helped

e is the natural log 

log_e = lnx = natural log

Thanks so much CPhill <3 you always got such clear steps :3

thankyou :)

Ah, I just remembered e = 2.718 

Whoever considered solving this, how nice of you  <3 thankyou, there's no need to solve it anymore~ I just understood it

Thank you very much. I really appreciate such a detailed explanation <3

2x + y = -1   and   -x + y = -7

y = x - 7          from second equation, isolate y

2x + x - 7 = -1      plugin second equation into first

3x - 7 = -1          add the x together

3x = 6            add 7 to the other side to isolate x

x = 3          divide 6 by 3 to isolate x

y = 3 - 7        plugin x for the 3rd isolate y equation

y = -4           add

(3, -4) 

-lekrj :) did you understand? hope you did

y=x-2 and 2x+y=4

2x+ (x-2)=4     plug in the x-2 into y

3x - 2 = 4        add x with 2x

3x = 6              add 2 to the other side to isolate x

x= 3                 divide 6 by 3 to isolate x

y = 3 - 2           plug in 3 for x

y = 1               3 minus 2 is 1

(3, 1)

-lekrj

EXTORSHEN, I did work it out. I only ask when I think the answer is wrong and made a mistake. When I checked, both #2 and 9 didn't work. Only later, check the first comment, did I see that #9 might be the right answer. 

EXTORSHEN thanks for recommending the website btw... but I would like to see a real person do or explain the other questions I had.

CPILL thanks :) love how you explain the steps

Personally I think 2 is extraneous when I checked again.... not sure tho >n<

The answer is you are stupid enough to not solve it in the calculator in home page.

3 4

thirty four

wow. what. a. great. brain. you.

didn't. even. try. to. use. the. calculator. at. "home". page. huh. 

=.=

Woo hoo~ this is better than answers yahoo :D at least for math...

19... 

:) thankyou

soooo it is right?

the answer i got for myself was 16sqrt of 2 + 2, would that be right? dont need decimals...