SOLUTION: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -5x – 7y = 25.5 -2x + 10y = -9

Algebra ->  Test -> SOLUTION: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -5x – 7y = 25.5 -2x + 10y = -9       Log On


   



Question 466805: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-5x – 7y = 25.5
-2x + 10y = -9

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
-5x – 7y = 25.5
-2x + 10y = -9
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Multiply thru 1st equation by -2
Multiply thru 2nd equation by -5
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10x + 14y = -51
10x - 50y = 45
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Subtract and solve for "y":
64y = -96
y = -3/2
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Solve for "x":
10x + 14y = -51
10x + 14(-3/2) = -51
10x - 21 = -51
10x = 30
x = 3
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Cheers,
Stan H.
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