2006-08-05 06:45:01 · 18 answers · asked by Anonymous in Education & Reference ➔ Primary & Secondary Education
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2006-08-05 06:49:21 · answer #1 · answered by Petro T 3 · 0⤊ 0⤋
I got a different answer.
3x 4 4y is not equal to 84x + 8y is not equal to 9
2006-08-05 07:30:22 · answer #2 · answered by just me 4 · 0⤊ 0⤋
u hv two eqs:
first is 3x+4y=9 second eq. 84x+8y=9
eq1*2
6x+8y=18(say eq 3)
subtract eq3 from eq 2
78x=-9
=>x=(-9/78)
put the value in eq 1 to get the value of y as
3*(-9/78)+4*y=9
2006-08-05 06:55:31 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Get like terms on each side in y=mx+b formation
-84x+3x-9=4y
4y= -81x-9
y= -81x/4 - 9/4
y= -20¼x - 2¼
2006-08-05 06:50:48 · answer #4 · answered by KnowhereMan 6 · 0⤊ 0⤋
3x + 4 y = 9 --- (i)
84x + 8y = 9 --- (ii)
Multiply (i) by 2 and subtract from (ii)
You get,
-78x = 9 and hence x = -9/78
Now substitute the value of x in either (i) and (ii) and get the value of y.
2006-08-05 06:50:12 · answer #5 · answered by Tilak 2 · 0⤊ 0⤋
7x7=49
2006-08-05 06:54:14 · answer #6 · answered by Anonymous · 0⤊ 0⤋
EQUATE 3X+4Y=9,84X+8Y=9.SOLVE IT.
2006-08-05 16:24:55 · answer #7 · answered by HARITHA SREE 1 · 0⤊ 0⤋
l=56+45=dfx54+7-44?
2006-08-05 06:51:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋
x = -3/26
y = 243/104
This is a perfect equation. Put these values in it and check for yourself.
2006-08-05 07:02:51 · answer #9 · answered by Anonymous · 0⤊ 0⤋
That is an improper equation but i shall have a crack at it anyway.
I have no idea of how you got nine but that is impossible but..
x=28
y=2
I hope that helps
2006-08-05 06:48:41 · answer #10 · answered by EMO cupcake 4 · 0⤊ 0⤋
cool.
want a nice glass of iced tea?
2006-08-05 06:48:11 · answer #11 · answered by powhound 7 · 0⤊ 0⤋