SOLUTION: Hello my name is Sarah I was here yesterday and you guys did me a big favor!! but now all I have is 5 more problems. {y=5x 6x-2y=-4 {4x-y=5 x=8-2y {-7x+y=32 2x+3y=27 {2x

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Hello my name is Sarah I was here yesterday and you guys did me a big favor!! but now all I have is 5 more problems. {y=5x 6x-2y=-4 {4x-y=5 x=8-2y {-7x+y=32 2x+3y=27 {2x      Log On


   

Question 668441: Hello my name is Sarah I was here yesterday and you guys did me a big favor!! but now all I have is 5 more problems. {y=5x 6x-2y=-4 {4x-y=5 x=8-2y {-7x+y=32 2x+3y=27 {2x+y=5 4x-3y=-10 {4x+2y=7 x-5y=10 can i have it y tonight? thanks (:
Found 2 solutions by ewatrrr, lynnlo:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Important that you learn how to do these:

y=5x 

6x-2y=-4     ||Substitute for y and find x ( then y = 5x)



x=8-2y+ ||Substitute for x and find y (then  x = 8-2y)

4x-y=5 



-7x+y=32    || Multiply 1st EQ by -3 and add to eliminate y (you'll find x =-3

2x+3y=27



2x+y=5      || Multiply 1st EQ by 3 and add to eliminate y  (you'll find x =1/2

4x-3y=-10 



4x+2y=7  

x-5y=10     || Multiply 2nd EQ by -4 and add to eliminate x (you'll find y = -3/2

Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
(1)x=1,y=5
(2)x=8/3,y=-8/3
(3)x=-3,y=11
(4)x=1/2,y=-3/2
(5)x=5/2,y=-3/2