SOLUTION: Solve the system of equations by elimination. 5x � 2y = -4 4x � 7y = 3

Question 237538: Solve the system of equations by elimination.
5x � 2y = -4
4x � 7y = 3

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Solve the system of equations by elimination.
5x � 2y = -4
4x � 7y = 3
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Multiply the 1st eq. by 4 and the 2nd equation by 5 to get:
---
20x - 8y = -16
20x -35y = 15
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Subtract the 3nd Eq. from the 1st and solv for "y":
27y = - 31
y = -31/27
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Substitute into 5x - 2y = -4 to solve for "x":
5x -2(-31/27) = -4
5x = -62/27 - (108/27)
5x = -170/27
x = -34/27
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Cheers,
Stan H
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