Mathematics
8 Online
OpenStudy (anonymous):
Solve.
2x - 5 = 13
x+18=14
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OpenStudy (anonymous):
2x=13+5 can u do the rest? :)
OpenStudy (anonymous):
and x=14-18
OpenStudy (anonymous):
I don't understand how to do them though... My teacher didn't explain, nor give an example.
OpenStudy (anonymous):
ok, for 2x=13+5. add 13 and 5
then, 2x=18 divide both sides by 2
so, x=?
OpenStudy (anonymous):
9
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OpenStudy (anonymous):
correct! so now can u do the other one...
OpenStudy (anonymous):
Oops the second one is actually x+8=14. So how do I do it?
OpenStudy (anonymous):
x=14-8
x=?
OpenStudy (anonymous):
6
OpenStudy (anonymous):
right! :)
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OpenStudy (anonymous):
What about this one?
4x + 3 = 2x + 7
OpenStudy (anonymous):
4x + 3 = 2x + 7 x=2
OpenStudy (anonymous):
I am so confused I am about to cry. I am tired of this stupid algebra crap. How did you get that answer? I do not understand.
OpenStudy (anonymous):
both equal 11
OpenStudy (anonymous):
4(2)+3=11 2(2)+7=11 therefore 4(2)+3=2(2)+7
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OpenStudy (anonymous):
replace x with 2
OpenStudy (anonymous):
How do I know what to replace x with for other problems though?
OpenStudy (anonymous):
get it?
OpenStudy (anonymous):
by isoclating it
OpenStudy (anonymous):
How do I do that?
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OpenStudy (anonymous):
but the answer is correct i don't have time to explain in detail sorry
OpenStudy (anonymous):
its basic math don look at it like algebra look at it like 2x2
OpenStudy (anonymous):
dont
OpenStudy (anonymous):
I am never going to get this done. Thanks for your help anyways...
OpenStudy (anonymous):
here
http://www.mathway.com
eneter problems for free get 5the answers but cant view the steps
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OpenStudy (anonymous):
its costs extra to viw steps its free for answers
OpenStudy (anonymous):
good luck
OpenStudy (anonymous):
Thanks...