What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = -1

Question

What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = -1

nali · Answer

i do not get ur question

nali · Answer

do u mean just solving for y

anonymous · Answer

What is the value of the y variable in the solution to the following system of equations?
5x + 4y = 1
4x + 3y = -1

nali · Answer

that is the same question from above

nali · Answer

i still do not get it

nali · Answer

do u want to solve for y

nali · Answer

5x + 4y = 1
4x + 3y = -1

     5x + 4y = 1
-1(4x + 3y) = -1(-1)

     5x + 4y = 1
   -4x + -3y = 1                 add both equations
---------------
      x  + y =  2

nali · Answer

wait i still did nto finish

nali · Answer

sorry to confuse u i have another an d easier way 
but just give me a few minutes to write it down

nali · Answer

solve for x in one equation and substitute in the other equation

5x + 4y = 1
4x + 3y = -1 

5x + 4y =1

5x = 4y - 1

x = 4y/5 - 1/5

substitute 

4x + 3y = -1 

4(4y/5 - 1/5) + 3y = -1

16y/5 - 4/5  +  3y = -1

16y/5  +  3y           =  -1 - 4/5 

31y/ 5 = -9/5

nali · Answer

|dw:1337983517507:dw| here it is