SOLUTION: 2x+ 4y=16 x+3=5
solution:(14,-3)
need a break down of how my text book got these solutions
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Question 187421: 2x+ 4y=16 x+3=5
solution:(14,-3)
need a break down of how my text book got these solutions
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
2x+ 4y=16
x+3y =5
------------
Divide thru the 1st equation by 2 to get:
x + 2y = 8
x + 3y = 5
---------------
Subtract the 1st from the 2nd to solve for "y":
y = -3
--------------
Substitute into x + 3y = 5 to solve for "x":
x + 3*-3 = 5
x - 9 = 5
x = 14
---------------
solution:(14,-3)
======================
Cheers,
Stan H.
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