SOLUTION: Need to know how to work out this problem! 3x+y=8 -2x-y=6
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Question 552820
:
Need to know how to work out this problem! 3x+y=8
-2x-y=6
Found 2 solutions by
mananth, Alan3354
:
Answer by
mananth(16946)
(
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3x+y = 8 .............1
-2x-y = 6 .............2
Eliminate y
Add the two equations
1 x = 14
/ 1
x = 14
plug value of x in (1)
3 x + 1 y = 8
42 + 1 y = 8
1 y = 8 -42
1 y = -34
y = -34
Answer by
Alan3354(69443)
(
Show Source
):
You can
put this solution on YOUR website!
3x+y=8
-2x-y=6
-------- Add
x = 14
---------
Sub for x in the 1st eqn
3*14 + y = 8
y = -34