SOLUTION: Solve the following system of equations: 9x+5y=-4 -8x+3y=7

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Question 745156: Solve the following system of equations:
9x+5y=-4
-8x+3y=7
Found 2 solutions by kekegeter , Alan3354:
Answer by kekegeter (97) About Me  (Show Source):
You can put this solution on YOUR website!
9x+5y=-4
9x=-5y-4
x=-5y+4/9

8x+3y=7
-8x-3y+7
x=- -3y+7/8

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the following system of equations:
9x+5y=-4
-8x+3y=7
----------------
Get the coefficients of x or y to match.
----
27x + 15y = -12 Eqn1 times 3
-40x + 15y = 35 Eqn2 times 5
----------------------------------- Subtract
67x = -47
x = -47/67
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Sub for x in any eqn to find y.
-8x+3y=7
376/67 + 3y = 7
376/67 + 3y = 469/67
3y = 93/67
y = 31/67