SOLUTION: Please help I have been trying to figure this problem out but am unable to even get started
-9x+2y=2
+6x+8y=-6
Algebra ->
Expressions-with-variables
-> SOLUTION: Please help I have been trying to figure this problem out but am unable to even get started
-9x+2y=2
+6x+8y=-6
Log On
Question 80277: Please help I have been trying to figure this problem out but am unable to even get started
-9x+2y=2
+6x+8y=-6 Found 2 solutions by stanbon, checkley75:Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! -9x+2y=2
+6x+8y=-6
----------
Plan to get rid of the y terms so you can solve for "x".
--------------
Multiply the 1st equation by 4 to get:
-36x+8y=8
---------
Subtract that from the 2nd equation to get:
42x=-14
x=-1/3
----------
Substitute that back into one of the earlier equations to solve for "y".
6x+8y=-6
6*(-1/3)+8y=-6
-2 + 8y = -6
8y = -4
y=-1/2
-----------
Solution x=-1/3 ; y=-1/2
==============
Cheers,
Stan H.
You can put this solution on YOUR website! I AM NOT A PAYED TUTOR. i AM A VOLUNTEER JUST HELPING SOLVE THE MATH PROBLEMS FOR STUDENTS WHENEVER I CAN.
--------------------------------------------------------------------------------
-9x+2y=2 multiply this equation by (-4) & add the 2 equations thus:
36x-8y=-8
+6x+8y=-6
------------------------------
42x=-14
x=-14/-42
x=1/3 answer.
-9*1/3+2y=2
-3+2y=2
2y=2+3
2y=5
y=5/2
y=2.5 answer.
(