+0  
 
0
642
1
avatar

x+4y=8 2x-5y=29

Guest Feb 20, 2015

Best Answer 

 #2
avatar+92367 
+5

x+4y=8  2x-5y=29

Using the first equation, subtract 4y from both sides

So x  = 8 - 4y       and subbing this into the second equation foe x, we have

2(8 - 4y) - 5y = 29

16- 8y - 5y = 29   simplify

16 - 13y = 29       subtract 16 from both sides

-13y = 13             divide both sides by -13

y = -1 

And x = 8 - 4(-1)  = 8 + 4  = 12

 

CPhill  Feb 20, 2015
 #2
avatar+92367 
+5
Best Answer

x+4y=8  2x-5y=29

Using the first equation, subtract 4y from both sides

So x  = 8 - 4y       and subbing this into the second equation foe x, we have

2(8 - 4y) - 5y = 29

16- 8y - 5y = 29   simplify

16 - 13y = 29       subtract 16 from both sides

-13y = 13             divide both sides by -13

y = -1 

And x = 8 - 4(-1)  = 8 + 4  = 12

 

CPhill  Feb 20, 2015

21 Online Users

avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.