Identify the solution(s) of the system of equations, if any.
x + 3y = 6
5x - 6y = 2

Question

Asked 5/4/2014 7:39:47 PM

Updated 307 days ago|7/15/2018 1:39:59 PM

2 Answers/Comments

This conversation has been flagged as incorrect.

linkguy30|Points 1|

Question

Asked 5/4/2014 7:39:47 PM

Updated 307 days ago|7/15/2018 1:39:59 PM

2 Answers/Comments

This conversation has been flagged as incorrect.

Rating

3

x + 3y = 6 ;

5x - 6y = 2 ;

x = -3y + 6 ;

5(-3y + 6) - 6y = 2 ;

-15y + 30 - 6y = 2 ;

-21y + 30 = 2 ;

-21y = 2 - 30 ;

-21y = -28 ;

y = -28/-21 ;

y = 28/21 ;

y = 4/3 ;

x + 3(4/3) = 6 ;

x + 4 = 6 ;

x = 6 - 4 ;

x = 2;

Solution set: x = 2, y = 4/3

5x - 6y = 2 ;

x = -3y + 6 ;

5(-3y + 6) - 6y = 2 ;

-15y + 30 - 6y = 2 ;

-21y + 30 = 2 ;

-21y = 2 - 30 ;

-21y = -28 ;

y = -28/-21 ;

y = 28/21 ;

y = 4/3 ;

x + 3(4/3) = 6 ;

x + 4 = 6 ;

x = 6 - 4 ;

x = 2;

Solution set: x = 2, y = 4/3

Added 307 days ago|7/15/2018 1:37:46 PM

This answer has been confirmed as correct and helpful.

3

4x + 6y = 11 ;

y = 5 - 7x;

4x + 6(5 - 7x) = 11 ;

4x + 30 - 42x = 11 ;

-38x + 30 = 11 ;

-38x = 11 - 30 ;

-38x = -19 ;

x = -19/-38 ;

x = 19/38 ;

x = 1/2 ;

y = 5 - 7(1/2) ;

y = 5 - 7/2 ;

y = 3/2 ;

Solution set: x = 1/2, y = 3/2

y = 5 - 7x;

4x + 6(5 - 7x) = 11 ;

4x + 30 - 42x = 11 ;

-38x + 30 = 11 ;

-38x = 11 - 30 ;

-38x = -19 ;

x = -19/-38 ;

x = 19/38 ;

x = 1/2 ;

y = 5 - 7(1/2) ;

y = 5 - 7/2 ;

y = 3/2 ;

Solution set: x = 1/2, y = 3/2

Added 307 days ago|7/15/2018 1:39:59 PM

This answer has been confirmed as correct and helpful.

how do you write 0.008 in scientific notation **Weegy:** Express 0.008 in scientific notation8*10-4. Now finish your homework. You need to do more homework because the answer is 8*10^-3
(More)

Question

Updated 5/4/2014 8:22:38 PM

1 Answer/Comment

0.008 in scientific notation in 8*10^-3.

Added 5/4/2014 8:22:38 PM

This answer has been confirmed as correct and helpful.

29,943,325

questions answered

There are no comments.