0
If this is:
8x - y = 20
-5x = y - 8
8x - y = 20
-5x - y = -8 multiply by -1in order to eliminate y;
8x - y = 20
5x + y = 8 add both equations;
13x = 28
x = 28/13 substitute the value of x into the one of the equations in order to find y. For example, substitute it into the first one;
8(28/13) - y = 20
224/13 - y = 20 multiply both sides with 13;
224 - 13y = 260
224 - 224 - 13y = 260 - 224
-13y = 36 multiply both sides by -1;
13 y = -36 divide both sides by 13;
y = -36/13
So the solution set is (28/13, -36/13)
Check:
8(28/13) -(-36/13)= 224/13 + 36/13 = 260/13 = 20
-5(28/13) = -36/13 - 8 ?
-140/13 = -36/13 -8 ?
-140/13 = -36/13 - 8(13/13) ?
-140/13 = -36/13 - 104/13 ?
-140/13 = -140/13
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What is better y8 or y3?
I am not sure, but I usually play games on y8.
What is the result if you divide -12x8 y8 by 3x4 y2?
( -12 x8 y8 ) / ( 3 x4 y2 ) = -4 x4 y6
Can you completely factor x32 - y32?
0
What is the gcf of y4 y8 y9?
The GCF is y4
If y8 find the value of 3y plus 7?
If you mean y = 8 then the value of 3y+7 is 24+7 = 31
What does Y8 stand for?
what does y8 mean
How do you download games from y8?
Yes you can download games from y8
What is better y8 or y3?
I am not sure, but I usually play games on y8.
How can i delete my account from y8.com?
i want to delete my y8 account
Cheats for the car in y8?
On y8 the game the car what is the code on the toolbox?
What is 2x-y8 where x6?
2x-y8 where x is 6: xy=8-2=6
-x+ 4 y>-8 x+y8 y?
-x+ 4y>-8, x+y≤3 y≤3-x -x+4(3-x)>-8 -x+12-4x>-8 12-5x>-8 -5x>-20 x>4 y≤3-(4) y≤-1
What is y8?
Y8 is subjective it usually stands for 8 Yen, it also determines the eighth year in reference to a given date. Y8 is also a website where games are available. It is fun and interesting. There are categories for you to choose. Y8 is a two digit domain name; the rare kind.
What is the best setup for a turbo d-series engine?
Z6 block. Y8 head. Y8 tranny
How do you calculate y8 y12 -4?
If this is an equation you left out the equal sign. Do you mean y8=y12-4. If so add 4 to both sides. You have 4+y8=y12. Then substract y8 from both sides. You have 4=y4. Divide both sides by 4. You have y=1.
Does y8 give viruses?
No!!
How games does y8 have?
38
