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mathsboy

simultaneous equations

39 posts in this topic

you+this question+your life+your genes= a complete waste of time. How about that. f*ck of wi yr bullshit. hope you fail your exam. Enjoy flipping sum burgers yh. Extra bbq sauce plz.

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Bro your slipping if you have left it this late to understand it, you should take maths like weight training and do it every day or every otheronce you do a topic you go home and bang out the excersise, do like 20 question so that you understand itsubscribe to this channel really good help for you maths probably the best on youtubeBesides watching one video tho, watch like 2-3 different video's on how to do it so that your seeing more then one method on how to attempt the question

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c/s the weight trainingthe absolute only way to get it is to have a worked example, go over it, and pratice practice practicesome times i found having a teacher made it bit worse, jus need the worked examples, all of them

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ok i need help with this one:

2x-5y=4

5x-2y=3

I got x=23/29 y=14/29 but its wrong?

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you+this question+your life+your genes= a complete waste of time. How about that. f*ck of wi yr bullshit. hope you fail your exam. Enjoy flipping sum burgers yh. Extra bbq sauce plz.

pmsl

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someone help me out with division algorithm/theorem, sh*t's making no sense to me, just need a push in the right direction (link to a decent site maybe)

anyone know a decent Maths/Logic/Sets book for computer science?

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someone help me out with division algorithm/theorem, sh*t's making no sense to me, just need a push in the right direction (link to a decent site maybe)

anyone know a decent Maths/Logic/Sets book for computer science?

what do you want to know? It just states that a number can be written as Ax+b where 0<=b<x

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ok i need help with this one:

2x-5y=4

5x-2y=3

I got x=23/29 y=14/29 but its wrong?

y = -2/3

x = 1/3

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lol, pos'd for u signature

/

stealing it for my facebook, i apologise

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I automatically think a topic is about/ involves me if there's a word that starts with 'EQ' in the beginning

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ok i need help with this one:

2x-5y=4

5x-2y=3

I got x=23/29 y=14/29 but its wrong?

solve by substution

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Lens method 1:

multiply top equation by 2.5

gives You

5x - 12.5y = 10

now subtract other equation

5x - 12.5y = 10 -

5x - 2 y = 3

gives

-10.5y = 7

y = -7/10.5 or

y= -2/3

if You're with me so far, I'll go on

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Lens method 2: solve for x, then substitute

2x - 5y = 4

2x = 4 + 5y

x = (4+5y)/2

x = 2 + 2.5y

now instead of x, in 2nd equation, write 2+2.5 y, coz that = x

5x - 2y = 3 becomes

5 (2 +2.5y)- 2y = 3. multiply out, gives

10 + 12.5y - 2y = 3 subtract like terms, gives

10 + 10.5y = 3

10.5y = 3-10

10.5y = -7

y= -7/10.5

y=-2/3

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Lens method 1:

multiply top equation by 2.5

gives You

5x - 12.5y = 10

now subtract other equation

5x - 12.5y = 10 -

5x - 2 y = 3

gives

-10.5y = 7

y = -7/10.5 or

y= -2/3

if You're with me so far, I'll go on

yeh im with you. why do you substitute for y into either equation i dont get that

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quote me where i've done a step You dont understand.

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you do know he's being a stupid f*ck*ng prick right?

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I think so. Seems like the same being a stupid f*ck*ng prick technique.

Comparing the posts in this and the topic about the hood DVD comedy sketch, you can see he has a way of appearing to overlook obvious things that are right in front of him and making a post that makes other people want to correct him and post further and so on, eventually leading some long off stupid argument until whoever's fallen for the bait can't be bothered any more.

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