2007-11-23 06:49:14 · 10 answers · asked by Darnell J 1 in Science & Mathematics ➔ Mathematics
They are both the same equation.
-2x -10y = -20
-2(x+5y)=-20
x+5y = 10
To Mere Exposure:
Try x=9 and y=0.2
Or x=1 and y=1.8
Oh look! They work too...
2007-11-23 06:54:01 · answer #1 · answered by ? 7 · 1⤊ 1⤋
this methodology has no unique answer shall we label the equation one million and a couple of one million x+5y=10 2 -2x-10y=-20 enable s multiply one million with the help of two 2*(x+5y=10) -2x-10y=-20 --------------------- 2x+10y=20 -2x-10y=-20 ----------------------- 0x+0y=0 for occasion right here's a pattern answer: for x=0 y=2 x=one million y=9/5 x=2 y=8/5 x=10 y=0 so on......... there are various recommendations or the set of answer is countless
2016-11-12 11:56:30 · answer #2 · answered by ? 4 · 0⤊ 0⤋
First you have to solve for x in one of your equations...
x + 5y = 10
move your 5y to the other side and it becomes negative
x = 10-5y
then plug your x into the other equation
-2(10-5y)-10y = -20
-20y+10y-10y=-20
-20=-20
y=1
then plug that in to the other equation and slove for x
x+5(1) = 10
x+5=10
bring 5 to the other side
x=10-5
so
x=5
ANSWER
x=5
y=1
Then just check it!
2007-11-23 06:55:23 · answer #3 · answered by Anonymous · 0⤊ 2⤋
If you multiply the first equation by -2, you get the second equation. Therefore the two equations contain the same information, and you can not calculate a unique solution for x and y. The matrix is singular.
Although you can not calculate a unique solution, you can be fancy and describe the complete solution set in terms of a variable t:
x = 0.384615 + 0.980581*t
y = 1.923077 - 0.196116*t
2007-11-24 07:36:15 · answer #4 · answered by Anonymous · 0⤊ 1⤋
well as they are both the same thing it is just a case of finding the set of solutions for one.
plot the graph x+5y=10
or in a more standard format y = -x/5 + 2
pick any point on the line and find the x and corresponding y co-ordinate and they will satisfy the equation.
2007-11-23 11:41:41 · answer #5 · answered by Sion 2 · 0⤊ 1⤋
As these are the same equation any pair of results on the graph for either equation will work for both as the lines are the same (I would use x + 5y + 10 as it is slightly easier).
2007-11-24 03:48:45 · answer #6 · answered by Anonymous · 0⤊ 1⤋
x =5
y = 1
2007-11-23 06:53:45 · answer #7 · answered by Mere Exposure 5 · 0⤊ 1⤋
These are the same equations!
2007-11-23 06:59:40 · answer #8 · answered by Como 7 · 1⤊ 1⤋
x= 0 & y=2
Any other answers given by others ARE WRONG !
2007-11-23 07:01:29 · answer #9 · answered by Harish K 2 · 0⤊ 3⤋
it have alot of answer
2007-11-24 01:59:34 · answer #10 · answered by chheangheng.pouv 2 · 0⤊ 1⤋