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solve the following equation:-
A)
-=B)
=3p-10note:-There is minus sign between
andLast edited by soha (2007-10-21 17:22:11)
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
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A)
making the denominators the same:
multiplying both sides by 15 now removes the denominator
B)
giving both sides the same denominator:
multiplying both sides by 3 to remove the denominator
Last edited by Daniel123 (2007-10-21 22:19:05)
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but the answers in my text book r diffrent
they r:-
A)x=-11/2
B)p=-5
please see that u have got diffrent answers
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
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It's easy to check whether a potential answer is right; you just have to plug it into the original equation and see if it works.
For example, the book gives the answer to A as -11/2.
Plugging that in, you get
Therefore, (-4)-(-7) = 1/3. But (-4)-(-7) = 3, not 1/3, so the answer doesn't work.
Why did the vector cross the road?
It wanted to be normal.
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Please find the answer to the solved equation
Get the 1/3 to the left hand side. Now the denominators are the same. The equation can be solved in this way.
=>(2x-1)/3-(1/3)=(6x-2/5)
=>2(x-1)/3=2(3x-1)/5
cancell 2 from both the sides and cross multiply i.e. multiply 5 with the left hand side and 3 with the right hand side
=>5(x-1)=3(3x-1)
=>5x-5=9x-3
=>-2=4x
or x=-1/2
b) 2p+5=9p-30
or 7p=35
or p=5
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but in my text ,that answer is there.
do u all mean that the answer in my text is wrong . well it might be .
well everyone thanks.
the B) answer is also wrong .there is a minus there.
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
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Yup, the textbook answers are wrong. That or you've given us different questions to the ones in the book.
Why did the vector cross the road?
It wanted to be normal.
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no , i checked it approx. 5 times.
well check again in night and then will reply in this thread again
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
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no , i checked it approx. 5 times.
well i will check again in night and then will reply in this thread again
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
Offline
i checked it again. but the answer in my book are different.
i think they are wrong only.
"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"
- David O. McKay
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