#2**+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**+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